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monitoring
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     Anaesthesia Monitoring
     麻醉监护
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     On the Finance Monitoring
     谈财政监督
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     3)Surveillance and Monitoring;
     检测和监测 ;
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     5) dynamic monitoring;
     ⑤动态监测;
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  monitoring
This method is rapid, sensitive and suitable for the monitoring of nicotinic acid, nicotinamide, and 3-cyanopyridine in effluent of related pharmaceutical manufacturing plants.
      
As the strain sensing element of a structural health monitoring, the study and the application of the fibre-optic bragg grating (FBG) have been widely accepted.
      
The simulation model for digital communication between protective relaying equipment and monitoring equipment of interval layer was suggested.
      
In this paper, based on a long-term monitoring of water cycle in the water and soil conservation forest stands of Pinus tabulaeformis and Robinia pseudoacacia, the soil moisture deficit is calculated.
      
In addition, with long-term monitoring of soil moisture in stands, the authors also give an appropriate managing density specifically for the water and soil conservation forests of P.
      
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Rational mining intensity in coal seams is an important basis for planning and distribu-tion of mine output. In this article, in consideration of the fundamental technological fea-tures of hydrautic mining production and on the basis of field experiences, a preliminary study has been made in connection with the planning and research method for mining inten-sity in hydraulic mining of coal seams, for a given water-supply installation (water flow)Problems dealt with herein include. (1) The basic expression and...

Rational mining intensity in coal seams is an important basis for planning and distribu-tion of mine output. In this article, in consideration of the fundamental technological fea-tures of hydrautic mining production and on the basis of field experiences, a preliminary study has been made in connection with the planning and research method for mining inten-sity in hydraulic mining of coal seams, for a given water-supply installation (water flow)Problems dealt with herein include. (1) The basic expression and composition of principal parameters for mining intensity in hydraulic coal mining; (2) The interrelation of principal component parameters such as the productive capacity of monitors, number of monitors in simultaneous operation, etc; (3) important factors that influence planning and selection of parameters and some economico-technical problems that should be considered.It has been found that, on the condition that relative stability of roof above coal seam is maintained during hydraulicking, acquirement of low water-coal ratio and high productive efficiency is the principal gauging standard for rational mining intensity as well as for the selection and planning relevant parameters. The thickness of coal seam is the main objective condition to be considered. Correctly using the above objective factors with thickness of coal seam as a basis, in dealing with noz-zle diameters, number of monitors operating simultaneously and interrelation between rele-vant parameters, a better planning method may be woked out and a set of practicable nume-rical values on the ground of concrete conditions may be obtaind All these will become an important task for future research work in regard to determining the rational mining inten-sity in the hydraulic mining of coal seams.

煤层合理开采强度是矿井产量设计和分配的重要依据.本文在体会水采生产工艺基本特点及现场经验的基础上,对给定供水设备(流量)条件下的水采煤层开采强度设计研究方法进行了初步探讨.文中所涉及的问题包括:(1)水采煤层开采强度的基本表达方式及主要参数组成;(2)水枪生产能力,同时开动(工作)水枪台数等几个主要组成参数间的联系;(3)影响各参数设计选择的主要因素及应当考虑的一些主要技术经济问题.文中认为:以保持煤垛上方顶板在冲采期间相对稳定为前题,取得低的水煤比和高的生产效率是合理开采强度及有关参数选择设计的主要衡量标准,煤层厚度是主要考虑的客观条件.正确的根据煤层厚度等客观因素,辩证的处理喷嘴直径,同时工作水枪台数及有关参数间的关系并针对具体条件寻求一套更完善的设计方法和具体数值是今后水采煤层合理开采强度研究工作的一项重要任务.

A gas chromatographic method has been developed for monitoring trace amountof volatile organics in deep-treated waste water from a duprene plant to examine theefficiency of the treatment.A gas stripping technique was used to concentrate theorganics in order to increase the overall sensitivity.The detection limits for chloro-prene,divinylacetylene and benzene are all 0.004mg/l,and for acetaldehyde,0.006mg/l.The dynamic process of activated coal used in the treatment of the waste waterwas also illustrated.This...

A gas chromatographic method has been developed for monitoring trace amountof volatile organics in deep-treated waste water from a duprene plant to examine theefficiency of the treatment.A gas stripping technique was used to concentrate theorganics in order to increase the overall sensitivity.The detection limits for chloro-prene,divinylacetylene and benzene are all 0.004mg/l,and for acetaldehyde,0.006mg/l.The dynamic process of activated coal used in the treatment of the waste waterwas also illustrated.This method is probably applicable to the determination of othervolatile organic substances in water at ppb level.

采用吹气浓缩法和气相色谱分析法,可以测定水中含量为0.004毫克/升的氯丁二烯、二乙烯基乙炔和苯,并测定含量为0.006毫克/升的乙醛。应用此法已为氯丁橡胶生产废水的深度处理试验检验了处理效果,初步探索了活化煤的动态吸附过程,此法也适用于测定水中十亿分之一(微克/升)级或浓度更低的其他挥发性有机物。

During the past ten years,N-nitrosamines has attracted a great deal of attentionas a carcinogenic hazard in the environment.The monitoring of trace amounts of N-nitrosamines in food is now possible with gas-chromatography mass-spectrometry,if thecostly instruments are available.But for routine analysis in an ordinary laboratory thisis hardly feasible.A simple colorimetric method is proposed here for the detection of the total volatileN-nitrosamines in food extracts.The method involves solvent extraction,fractional...

During the past ten years,N-nitrosamines has attracted a great deal of attentionas a carcinogenic hazard in the environment.The monitoring of trace amounts of N-nitrosamines in food is now possible with gas-chromatography mass-spectrometry,if thecostly instruments are available.But for routine analysis in an ordinary laboratory thisis hardly feasible.A simple colorimetric method is proposed here for the detection of the total volatileN-nitrosamines in food extracts.The method involves solvent extraction,fractional dis-tillation and ultra-violet irradiation to liberate nitrite,followed by concentration witha strong basic resin.The nitrite is then eluted with sodium chloride and detected withthe Griess reagent.The recovery is of the order of 70~110per cent at the 10~(-8)g level.

对于食物中N-亚硝胺类致癌物质的含量虽可用气相层析——质谱仪方法进行测定,但由于仪器价格昂贵,在一般实验室较难普及。因而,我们研究了食物中挥发性N-亚硝胺总量的定量比色测定。方法包括溶剂抽提、水蒸汽蒸馏、紫外光解释放亚硝酸根进而用离子交换树脂浓缩、洗脱、显色定量。总回收率为70~110%。可测至10~(-8)克水平。

 
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