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  232 port
     The platform will communicate data with PLC by the RS232 port.
     平台与PLC之间通过RS232口进行数据交换。
短句来源
     On basis of describing μXL real-time multi-task processing techniques, this paper introduces a method for the communication between μXL and PC with a RS232 port on MOPS main board.
     本文在论述了μXL实时多任务处理技术的基础上,介绍了一种利用MOPS主板上的RS232口实现μXL与PC机通信的方法。
短句来源
     In the general intellectual data collecting system,singlechip is the main component. Controled by singlechip,ADC chip of AD7715 works,selection and con-trol method for series chips of high capacity flash memory of AT45D is realized. Through RS 232 port,system can communicate whit PC.
     通用智能数据采集系统以单片机为核心,控制模/数转换芯片AD 7715实现对数据的采集,使用串行接口大容量FLA SH存储芯片AT 45D 041对数据进行存储,通过RS232口实现与上微机的通讯,并用LCD实时显示运行状态、测量结果等,重点阐述了单片机对AD 7715以及AT 45D 041的控制.
短句来源
     designing a special intelligence apparatus,connecting it to computer through RS232 port.
     智能操作器的设计:设计专用的智能操作器,通过RS232口和主机相连,既方便了各种体位下的被试使用,也使计算机操作不会对被试造成测试误差。
短句来源
     The upper computer is an industrial computer system and its RS232 port connects with a serial port of microcontrollor .
     上位机即工控机系统,通过RS232口与微控制器的串口相连。
短句来源
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  232
     How to Get+5V Power Source from RS232 Interface
     从RS232口获取+5V电源
短句来源
     The paper illustrates some conversion circuits of how to get +5 V power source from RS232 interface.
     文中介绍了从RS232口得到+5V电源的几种变换电路。
短句来源
     Since the protocol for RS232 is simple, RS232 has been widely used in various equipment to collect and control the signal data in industrial control system.
     由于RS232通信接口协议简单,工业控制系统已广泛应用RS232口对各种设备进行信号采集和控制。
短句来源
     The platform will communicate data with PLC by the RS232 port.
     平台与PLC之间通过RS232口进行数据交换。
短句来源
     In order to cut down their costs and reduce their dimensions, you can get + 5 V power source to control the circuit directly from RS232 interface in I/O equipment.
     为了降低成本,缩小体积,这些输入输出设备可直接从RS232口获取控制电路所需的+5V电源。
短句来源
更多       
  232 interface
     How to Get+5V Power Source from RS232 Interface
     从RS232口获取+5V电源
短句来源
     In order to cut down their costs and reduce their dimensions, you can get + 5 V power source to control the circuit directly from RS232 interface in I/O equipment.
     为了降低成本,缩小体积,这些输入输出设备可直接从RS232口获取控制电路所需的+5V电源。
短句来源
     The paper illustrates some conversion circuits of how to get +5 V power source from RS232 interface.
     文中介绍了从RS232口得到+5V电源的几种变换电路。
短句来源
  “232口”译为未确定词的双语例句
     The RS-232 interface is used for the near distance communication and the RS-422 interface is used for far distance communication.
     近距离通讯采用 RS—232口,远距离采用 RS—422口。
短句来源
     This paper introduces the universal of serial communication at first. Then the steps of the serial communication are explained. And also the three ways to achieve the serial communication are discussed,that is,the way based on the MSComm of VC++,the way based on the API function and the way of multithreading.
     首先介绍了串行通信的一般概念,然后说明了利用RS-232口进行串行通信的一般步骤,并介绍了三种用VC++实现串行通信的具体方式:使用VC++提供的MSComm控件实现串口通信、利用API函数实现串口通信和多线程下实现串行通信方法,最后比较了三种方法的利与弊。
短句来源
     The controlling unit transmits data and controlling order through RS-232.The circuit adopts CS5532 chip that adjusts the electronic bridge out signal and realizes the A/D transmission in 24 bits.
     上位机和控制单元通过RS-232口传递数据和控制命令,测温过程控制和数据处理更加方便。 温度信号调理电路采用CS5532芯片,调理电桥输出信号,对其实现24bit的A/D转换。
短句来源
     The features and internal structure of BlueCore02are introduced,whit which the RS-232port of AVQC ( Automatic Voltage&Reactive Power ( Q ) Control ) apparatus is transferred into of bluetooth wireless communication mode to enhance its network communication performance and inter-operation ability.
     介绍了蓝牙芯片BlueCore02的特性、内部构成及应用该芯片对变电站电压无功综合控制AVQC(AutomaticVoltage&ReactivePower(Q)Control)装置RS-232口的无线改造,给出了实现方案。
短句来源
     The design of multi-232 ports interface applying for micro-controller's master-slave system
     微机主从通讯系统多232口连接电路设计
短句来源
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  232 port
A two-directional communication was interfaced in-house between the ICP-MS and the LA via serial RS-232 port.
      
After crossing an IR ray, our touch screen sends the identification number of the crossed ray to the host computer through the RS-232 port.
      
A hard-copy terminal connected either directly to its dedicated RS-232 port at the rear of the controller, or remotely via data modems.
      
A standard RS 232 port allows for monitoring the shower operation from a remote location.
      
CenterStage requires a standard AT style cable for connection to the RS-232 port.
      
更多          
  232
By using the maximum likelihood method 1 077 trees were examined and the result showed that one tree had a best score of -Ln=2 232.47.
      
The 232 non-dialysis patients with CKD and 37 chronic uremic patients treated with maintenance hemodialysis were enrolled in this study.
      
The 232 non-dialysis patients were divided into three groups according to their Ccr.
      
The sediments recorded three negative values of remanence magnetic inclination at the depth: 191-206 cm, 232-248 cm, and 292-308 cm.
      
cultivar 232) cenoses at light intensities of 70, 150, or 240 W/m2of photosynthetically available radiation (PAR) were studied.
      
更多          
  232 interface
The data-acquisition system is controlled by a PC or the Mark IV Field System program (now used internationally in the pursuit of radio interferometry), which is installed in the radio telescope's central computer using an RS-232 interface.
      
Software is described that provides for operation either remotely via an RS232 interface or from the front panel of the instrument.
      
Data collection for transplantable solid tumors has been automated with electronic digital calipers and a balance which have been coupled through an RS-232 interface to a microcomputer.
      
Arbitrary waveforms can be defined by front panel editing controls or by downloading of waveform data via the RS232 interface.
      
A configuration defines the GPS processing and characteristics of the RS-232 interface ports.
      
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In order to determine the practical value of the Bordeaux mixture as acontrol measure for the cotton leafhopper, a field experiment was designedand carried out in 1943 at Shatang, Liuchow, Kwangsi. Three known effective contact poisons, namely, a water suspension ofYam bean seed power (Gross Smith value 1%) (1:1000), a water suspension ofpyrethrum powder (1:600), and a water extract of tobacco (Nicotine content2.35%) (1:100) were applied at the same time with two types of Bordeauxmixture (4-6-50 and 2-4-50)...

In order to determine the practical value of the Bordeaux mixture as acontrol measure for the cotton leafhopper, a field experiment was designedand carried out in 1943 at Shatang, Liuchow, Kwangsi. Three known effective contact poisons, namely, a water suspension ofYam bean seed power (Gross Smith value 1%) (1:1000), a water suspension ofpyrethrum powder (1:600), and a water extract of tobacco (Nicotine content2.35%) (1:100) were applied at the same time with two types of Bordeauxmixture (4-6-50 and 2-4-50) for four applications at a fifteen-day intervalduring the early growth season of cotton from June 15 to July 30. The popula-tion of leafhopper, the degree of infestation, the number of green bolls andthe yield of lint cotton were statistically analyzed and discussed. Population observations showed that the three contact poisons greatlyreduced the leafhopper population on the first day after application. Butthey soon lost their effectiveness three days later, so that the population startedto rebuild up and was practically with no significant difference from that ofhe untreated plots at the end of the fifteen-day interval. While the Bordeaux mixture showed a maximum reduction of population on the third day afterapplication, and maintained its effectiveness for a considerable time; the pop-ulation was constantly checked to such an extent that no serious damage wouldoccur during the spray interval. The degree of infestation as indicated by the symptom of cyrtosis onleaves was 40.83, 47.21, 55.85, 57.66, 62.48, and 60.39 per cent in average for4-6-50 Bordeaux mixture, 2-4-50 Bordeaux mixture, yam bean seed powdersuspension, pyrethrum powder suspension and tobacco water extract and theuntreated check plots respectively. Moreover, the percentage of heavily in-fested plants for the treated and untreated plots in the fore-mentioned orderwas 5.61, 8.24, 21.88, 23.68, 28.88 and 25.27 respectively.It was evident thatin the long run the Bordeaux mixture was the most effective insecticide inreducing the degree of infestation. The number of bolls per plant was 15.27, 13.24, 10.17, 9.53, 8.75 and6.75 in average, and the yield of lint cotton was 19.50, 17.84, 11.69, 10.11and 6.24 catties per mou (1 catty=0.5 kilogram, 1 mou=0.164 acre) for thetwo types of Bordeaux mixture and three kinds of contact poisons and theuntreated check plots respectively. The yield of cotton was generally much lower in 1943 than in 1942 forthe same experimental field. This was apparently due to the poorer soilfertility and heavier leafhopper infestation in 1943. But the ratio of the yieldbetween the Bordeaux mixture treated plots and the check plots was quitedifferent in the two years, i.e. 55.62 to 31 catties per mou in 1942, and 19.50to 6.24 catties per mou in 1943. This revealed a fact that the Bordeauxmixture treatment will he applied more effectively and profitably where thecotton field is not fertile and when the leafhopper outbreak is severe. 4-6-50 Bordeaux mixture and 2-4-50 Bordeaux mixture were in all casesinsignificantly different in their effectiveness. Theiefore a 2-4-50 Bordeauxmixture would be a more economical and practical measure for the cottonleafhopper control.

(一)本试验应用三种防治棉浮(鹿土)子之有效接触剂,烟草、除虫菊、及豆薯种子,与两种配合式之波尔多液;4—6—50式及2—4—50式,同时在棉田内每半月施用一次,自六月半至七月底共施用四次。比较其消减虫,减轻受害程度及增加产量诸功能,藉以证明波尔多液之特性。 (二)1000倍豆薯种子粉悬液、600倍除虫菊粉悬液、及100倍烟草水,三者不论在消减虫,减轻受害程度,以及增加产量各方面,其功能均相若,无显著差异。 (三)4—6—50式波尔多液与2—4—50式波尔多液,对于治虫、减害及增产各功能,亦无显著差异。 (四)豆薯种子粉悬液、除虫菊粉悬液、及烟草水三种接触剂经施用后一天之治虫效力,均显较波尔多液为优,惟至第三天,差异便不显著,三天以后,波尔多液之功效反日见优越。此显示波尔多液之持久特性。 (五)棉浮(鹿土)子之虫发生愈多,则波尔多液之功效愈著。因其效力持久,所抑制之虫可还较接触剂为低。 (六)波尔多液减轻棉叶之受害程度,因其药效持久,附属牢固,保护力强,故亦较三种接触剂为优。 (七)施用波尔多液后,结铃数显然增加。其功效亦优于三种接触剂。 (八)施用波尔...

(一)本试验应用三种防治棉浮(鹿土)子之有效接触剂,烟草、除虫菊、及豆薯种子,与两种配合式之波尔多液;4—6—50式及2—4—50式,同时在棉田内每半月施用一次,自六月半至七月底共施用四次。比较其消减虫,减轻受害程度及增加产量诸功能,藉以证明波尔多液之特性。 (二)1000倍豆薯种子粉悬液、600倍除虫菊粉悬液、及100倍烟草水,三者不论在消减虫,减轻受害程度,以及增加产量各方面,其功能均相若,无显著差异。 (三)4—6—50式波尔多液与2—4—50式波尔多液,对于治虫、减害及增产各功能,亦无显著差异。 (四)豆薯种子粉悬液、除虫菊粉悬液、及烟草水三种接触剂经施用后一天之治虫效力,均显较波尔多液为优,惟至第三天,差异便不显著,三天以后,波尔多液之功效反日见优越。此显示波尔多液之持久特性。 (五)棉浮(鹿土)子之虫发生愈多,则波尔多液之功效愈著。因其效力持久,所抑制之虫可还较接触剂为低。 (六)波尔多液减轻棉叶之受害程度,因其药效持久,附属牢固,保护力强,故亦较三种接触剂为优。 (七)施用波尔多液后,结铃数显然增加。其功效亦优于三种接触剂。 (八)施用波尔多液后,每亩皮棉产量亦显著增加。本年结果,施用4—6—50式波尔多液者,产量较对照区增多3.12倍,2—4—50式波尔多液区较对照区增产2.85倍

The present paper reports on the results of some preliminary observationson the insect parasites of the pine caterpillar, carried out in the Nanking dis-trict during 1936-37. (1) The following insect parasites were reared from various stages of thepine caterpillar: Egg parasites: Trichogramma evanescens Westwood, Telenomus dendrolimusiChu, Anastatus gastropachae Ashmead. Larva parasites: Casinaria dendrolimi Uchida, Rhogas spectabilis (Matsumura),Stenaraeoides octocinctus (Ashmead), Itoplectis nigribasalis Uchida,...

The present paper reports on the results of some preliminary observationson the insect parasites of the pine caterpillar, carried out in the Nanking dis-trict during 1936-37. (1) The following insect parasites were reared from various stages of thepine caterpillar: Egg parasites: Trichogramma evanescens Westwood, Telenomus dendrolimusiChu, Anastatus gastropachae Ashmead. Larva parasites: Casinaria dendrolimi Uchida, Rhogas spectabilis (Matsumura),Stenaraeoides octocinctus (Ashmead), Itoplectis nigribasalis Uchida, Tricholygasorbillans Wied., Sturmia sp., Carcelia sp. Pupal parasites: Xanthopimpla japonica Krieger, Pimpla disparis Viereck,Brachymaria obscurata (Walker), Brachymeria fiskei Crawford. Hyperparasites: Phygadeuon latipatiolator Uchida, Monodontomerus dentipes(Boheman), Brachymeria obscurata (Walker), Brachymeria fishei Crawford, Eury-toma sp. (2) The egg parasites played an important part in the natural control ofthe pine caterpillar. The percentage of parasitism reached 61% in the materialcollected at Tang-shan, 1936. Telenomus dendrolimusi and Anastatus gastropachaewere observed to be more important than Trichogramma evanescens. (3) As high as 26% of the early-instar larvae could be killed by the para-sites. The percentage of larval parasitism and the relative value of the severalparasites varied with the time at which host material was collected. A differ-ence of a few days would give entirely different results. (4) The late-instar larvae were attacked by three species of dipterousparasites. The highest percentage of parasitism observed was 42%. (5) 38.4% of the pine caterpillar were killed during their pre-papal andpupal stage chiefly by Sturmia sp. and Xanthopimpla japonica Krieger. (6) The percentage of parasitism whether in the egg, larva or pupa stagewere observed to be always higher in the second generation than in the first,a fact suggests that hibernation may have an important bearing upon thepopulation of the parasites. (7) The time of appearance of the more important parasites and theirhabits were discussed. (8) Some of the factors, such as hyperparasitism, non-synchronization ofthe life cycles of the host and parasite, over-restriction in host selection, andthe influence of certain control measures, which have adverse effects on theparasite populations, were discussed. (9) As the percentage of parasitisn fluctuated greatly with year and season,it, is, therefore, suggested that a study of the factors which are responsible forthese fluctuations is of primary importance. Based on the results of suchstudies, measures may be adopted to increase the efficiency of the parasites.

1936—37年在南京地区观察松毛虫寄生天敌所得的初步结果可简述如下: (一)南京地区业经发现的松毛虫天敌有卵寄生蜂3种:赤眼卵蜂、松毛虫长腹卵蜂、平腹小蜂;幼虫寄生蜂4种:松毛虫瘦姬蜂、松与虫红头小茧蜂、花胸姬蜂、黑基瘤姬蜂;幼虫寄生蝇3种:家蚕寄生蝇、大寄生蝇、小寄生蝇;蛹寄生蜂4种;日本黑点姬蜂、黑瘤姬蜂、大腿蜂、费氏大腿蜂;另重寄生8种。 (二)卵寄生蜂在防治松毛虫上起了适当大的作用,有时减低寄主虫达61.24%。3种寄生蜂中以松与虫长腹卵蜂及平腹小峰为较重要。 (三)松毛虫初龄幼虫寄生率最高时可达26%。寄生率的高低及各种天敌的比较重要性与采集寄主材料的时期有密切的关系,往往数日之差,寄生率可截然不同。 (四)松与虫的后龄幼虫遭3种寄生蝇的寄生。寄生率最高可达42%。 (五)松毛虫茧期的寄生率可达38.4%,天敌中以大寄生蝇及日本黑点姬蜂为 最主要。 (六)无论在卵期、幼虫期或蛹期,第2化松毛虫的寄生率均比第1化的为高。此点似说明越冬问题是松毛虫天敌繁殖中的一个关系问题。 (七)几种比较重要的寄生天敌的发生时期和生活习性,本文中根据观察所及,加以记载。 (八)本文中将几个影响松毛虫寄生...

1936—37年在南京地区观察松毛虫寄生天敌所得的初步结果可简述如下: (一)南京地区业经发现的松毛虫天敌有卵寄生蜂3种:赤眼卵蜂、松毛虫长腹卵蜂、平腹小蜂;幼虫寄生蜂4种:松毛虫瘦姬蜂、松与虫红头小茧蜂、花胸姬蜂、黑基瘤姬蜂;幼虫寄生蝇3种:家蚕寄生蝇、大寄生蝇、小寄生蝇;蛹寄生蜂4种;日本黑点姬蜂、黑瘤姬蜂、大腿蜂、费氏大腿蜂;另重寄生8种。 (二)卵寄生蜂在防治松毛虫上起了适当大的作用,有时减低寄主虫达61.24%。3种寄生蜂中以松与虫长腹卵蜂及平腹小峰为较重要。 (三)松毛虫初龄幼虫寄生率最高时可达26%。寄生率的高低及各种天敌的比较重要性与采集寄主材料的时期有密切的关系,往往数日之差,寄生率可截然不同。 (四)松与虫的后龄幼虫遭3种寄生蝇的寄生。寄生率最高可达42%。 (五)松毛虫茧期的寄生率可达38.4%,天敌中以大寄生蝇及日本黑点姬蜂为 最主要。 (六)无论在卵期、幼虫期或蛹期,第2化松毛虫的寄生率均比第1化的为高。此点似说明越冬问题是松毛虫天敌繁殖中的一个关系问题。 (七)几种比较重要的寄生天敌的发生时期和生活习性,本文中根据观察所及,加以记载。 (八)本文中将几个影响松毛虫寄生天敌虫的因子提出讨论,这些因子包括;重寄生的严重、天敌发生时期与寄主生活史的不相

Karrer and Enslin reported that the structure of alstyrine (S_(19)H_(22)N_2), a selenium- dehydrogenation-degradation product obtained by Sharp from the alkaloid alstonine, is identical with that of corynanthyrine, α-[2-(4, 5 diethylpyridyl)]-β-ethylindole (Ⅱ), despite the fact that the melting points of these two substances have a 5°difference. In his investigation, the author of the present paper has synthesized two homologues of (II), α-(2-pyridyl)-β- methylindole (Ⅲ) and α-(2-pyridyl)-β-ethylindole (Ⅳ),...

Karrer and Enslin reported that the structure of alstyrine (S_(19)H_(22)N_2), a selenium- dehydrogenation-degradation product obtained by Sharp from the alkaloid alstonine, is identical with that of corynanthyrine, α-[2-(4, 5 diethylpyridyl)]-β-ethylindole (Ⅱ), despite the fact that the melting points of these two substances have a 5°difference. In his investigation, the author of the present paper has synthesized two homologues of (II), α-(2-pyridyl)-β- methylindole (Ⅲ) and α-(2-pyridyl)-β-ethylindole (Ⅳ), finding that the former has almost the same ultraviolet absorption spectrum as that of alsyrine and that, like alstyrine, the metho- sulphate of the compounds (Ⅲ) and (Ⅳ) gives the same red colour reaction upon treatment with dilute sodium-hydroxide solution. The Fischer indole synthesis to cyclize the phenylhydrazone of the corresponding alkyl- 2-pyridylketone in the presence of mineral acid was employed by the author in the preparation of compounds (Ⅲ) and (Ⅳ). Besides, three a-carboline derivatives, namely, 2-(cyclohexylmethyl)-β-carboline (Ⅻ), 2-[(4'-methylcyclohexyl)-methyl]-β-carboline (XIII) and 2-[(2'-methylcyclohexyl)-methyl]- β-carboline (XIV), have also been synthesized; none of them is identical with alstyrine in physical and chemical properties. The preparation of compounds (Ⅻ), ((XIII)) and ((XIV)) was carried out according to the method originated by Bischler and Napieralski. This involved the condensation of tryptamine with a suitable acid, or acid chloride, first to form an amide, which was then cyclized with phosphorus pentoxide, and finally dehydrogenated .partially with selenium. The melting points of the two α-(2-pyridyl)-β-alkylindoles, three β-carbolines, their inter- mediates, and a few derivatives of theirs are as follows: ■

1.合成了兩種吲(朶) 衍生物:α-(2-吡啶基)-β-甲基吲(朶) 及α-(2-吡啶基)-β-乙基吲(朶)。前者的紫外線吸收光譜與阿爾斯泰令(alstyrine,係一種由西阿斯木鹼經硒降解後的產物)的吸收光譜極為類似;且二者有一種相同的顏色反應。因此說明阿爾斯泰令的結構可能與可利南斯令(corynanthyrine),α-[2-(4,5-雙乙吡啶基)]-β-乙基吲(朶)相同。 2.合成了三種β-咔卟啉的衍生物:2-環己烷甲基-β-咔卟啉,2-[(4′-甲基環己烷)甲基]-β-咔卟啉及2-[(2′-甲基環已烷)甲基]-β-咔卟啉。這些化合物的化學及物理性質都和阿爾斯泰令不同。因此後者不是β-咔卟啉衍生物。

 
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