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最低含量
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  minimum content
     It was found that seed kernels of masson pine contain mainly 16 kinds of amino acid,of which the minimum content of the 14 kinds appears at the proembryo stage and the maximum content of the 10 kinds at the early phase of young embryo stage.
     (4)种仁的氨基酸主要有16种,其中有14种的最低含量出现在原胚阶段初; 10种的最高含量在幼胚阶段初。
短句来源
  “最低含量”译为未确定词的双语例句
     The highest content of arteannuin B was 0.18% and the lowest was 0.003%.
     不同来源最高含量为0.18%,最低含量为0.003%。
短句来源
     and the contents of PAHs in the mud area to the southwest of Cheju Island are 117.1~211.7 ng/g, the average content of which is the lowest in the study area.
     济州岛西南泥质区最低,含量介于117.1~211.7ng/g之间。
短句来源
     The highest content of scopoletin was 0.017 3% and the lowest content was 0.002% from different producing areas.
     不同来源最高含量为 0 .0 173%,最低含量为 0 .0 0 2 %。
短句来源
     Among 10 samples the lowest content was 0. 8051mg/g, the highest was 1. 080mg/g.
     经对10批样品的测定表明,栓剂中没食子酸的最高含量为1.080mg/g,最低含量0.8051mg/g。
短句来源
     RESULTS : The highest content of three favonoids was 0.89% and the lowest content was 0.07% from different sources.
     结果 :不同来源最高含量为 0 .89% ,最低含量为 0 .0 7%。
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  相似匹配句对
     fastigiata has the lowest content.
     S. H. Fu含量最低
短句来源
     Ohwi had the lowest among the species studied.
     Ohwi)等含量最低
短句来源
     But the hydrophilicity decreases as the doping Ag increases to a certain content.
     的摩尔含量
短句来源
     infectious diseases is the lowest.
     传染病最低
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     Then the contents of Cp.
     IgG含量
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  minimum content
The requirements for the minimum content and level of training to give the supplemental Expert in Environmental Safety qualification to graduates of classical universities specializing in chemistry (specialty no.
      
The minimum content to be determined is about 10 mg of H2O, the maximum is 1300 mg of H2O.
      
The general conditions for the conversion of nitriles to primary amines with a minimum content of secondary or tertiary amines is with nickel catalyst using an excess of ammonia at relatively low temperatures (130-140 C).
      
Short-term effects of two environmental policy measures,minimum content requirement and utilization rate target, are analyzed.
      
The present paper describes an approach to optimize the size and porosity of the light-weight aggregate to obtain effective internal curing with a minimum content of such aggregate.
      
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Trichlorphon dusts in various concentrations were applied by means of a dusting box, either onto potted corn seedlings in 2-3 leaf stage on which larvae of the oriental armyworm were then taken to feed, or directly onto the larval bodies in containers which were then transferred to untreated potted corn seedlings. The above treatments were made at a dosage of 2.25 g. of dust per square meter, and the mortalities were counted after a period of 24 or 48 hours. The results showed that the differences in the effectiveness...

Trichlorphon dusts in various concentrations were applied by means of a dusting box, either onto potted corn seedlings in 2-3 leaf stage on which larvae of the oriental armyworm were then taken to feed, or directly onto the larval bodies in containers which were then transferred to untreated potted corn seedlings. The above treatments were made at a dosage of 2.25 g. of dust per square meter, and the mortalities were counted after a period of 24 or 48 hours. The results showed that the differences in the effectiveness of the Trichlorphon dusts against the larvae among various instars were evident. The least concentrations of active ingredient in dusts, that caused 90% kill, required for second-instar, third-and fourth-instars, or fifth-and sixth-instars of the larvae were 0.5, 1.0, or 2.5 percent respectively in the treatment of dusting the worm; and 0.25, 0.5, or 1.0 percent respectively in the treatment when larvae were fed on the dusted corn seedlings. Results also showed that feeding on dusted corn seedlings was nearly twice as effective as in the case when the larvae were dusted. In all the treatments, 2.5% dust gave almost complete kill of the larvae in all the stages of larval instars. The effectiveness of Trichlorphon dusts against the third-and sixth-instar larvae at 26℃ or 27℃ respectively was higher than those at the average temperature of 14℃ for the third instar larvae or 19℃ for sixth instar larvae. The lower effectiveness of the dusts at a lower temperature condition was presumably due to the treated larvae being less active and feeding on less amount of poisoned leaf portions than at a higher temperature. Trichlorphon dusts, applied onto the corn seedlings resulted in higher mortalities of the larvae in third-, fifth-and sixth-instars under high humidity (nearly saturated) than at 50% relative humidity, and it was more evident in the higher instar larval stages. The residual effectiveness of Trichlorphon dusts on the corn seedlings against the third instar larvae was observed. Dusts applied on the corn seedlings at 26℃ after 24 hours which were then fed to the larvae, showed a decrease in effectiveness i.e., only one half as effective as the time when the seedlings were just dusted. There was no significant difference in the decrease of residual effectiveness between treatments at saturated moisture condition and 50% relative humidity. Sixth instar larvae were dusted with 2.5% Trichlorphon dust, and the larvae were later rinsed with water at various time intervals up to 24 hours. A higher mortality was obtained as the time intervals increased before rinsing.

敌百虫粉剂按每平方尺250毫克(折合每亩3斤)的撒粉量,用双重纱格撒粉箱直接撒药于粘虫体上;或先将药粉撒布于盆栽玉米苗上,然后接飼粘虫。結果表明敌百虫粉剂对不同龄期粘虫的药效有明显的不同。在26℃按致死粘虫90%以上所需最低含量計算,直接撒药于虫体,对2龄,3、4龄,或5、6龄,所需浓度依次为0.5%,1.0%或2.5%;玉米苗撒药后飼虫,对以上各龄幼虫所需浓度依次为0.25%,0.5%或1.0%。并表明玉米苗撒布药粉后飼虫的药效,約大出虫体直接撒粉的1倍。将2.5%敌百虫粉剂用这两种方法处理,都能达到或接近100%的效果。温度低至14℃或18℃时,則药效比在26℃或27℃时为低。粘虫取食撒有敌百虫粉剂的玉米叶,在26℃、接近飽和湿度的条件下,对3龄、5龄或6龄粘虫的药效都大于在同温度、相对湿度50%时的药效,而粘虫龄期越大,药效的差别較明显。敌百虫粉剂施后經24小时,其残留药效約相当于刚撒布药粉后的一半。6龄粘虫直接撒布2.5%敌百虫粉剂后,經过不同时間洗除药剂試驗,在24小时內粉剂附着时間越短,药效也越小。

The amount of total free epoxides, namely, ethylene oxide and propylene oxide, contained in a siven sample o?the polyether (PPE) antifoaming agent can be determined by titrating with the standard solution of perchloric acid in a non-agueous solution. Glacial acetic acid is used as a solvent. The titration is performed in the presence of cetyltrimethylammonium bromide and trichlormathane. With crystal violet as an indicator at the end point of the titration, The color of the solution changes from violet to blue.Aldehyde,...

The amount of total free epoxides, namely, ethylene oxide and propylene oxide, contained in a siven sample o?the polyether (PPE) antifoaming agent can be determined by titrating with the standard solution of perchloric acid in a non-agueous solution. Glacial acetic acid is used as a solvent. The titration is performed in the presence of cetyltrimethylammonium bromide and trichlormathane. With crystal violet as an indicator at the end point of the titration, The color of the solution changes from violet to blue.Aldehyde, ether, ester, ketone or benzene, present in the sample has no influence on the determination.The lowest concentration, as calculated in terms of propylene. oxide, determined by the method is about 10ppm.This method is simple and fast. It is suitable for guality control.

本文采用非水滴定法,以冰醋酸为溶剂,在溴化十六烷三甲基铵及三氯甲烷存在下,用高氯酸—冰醋酸标准溶液直接滴定聚醚(PPE)消沫剂样品中游离环氧化物的总量,以结晶紫作指示剂,终点由紫色变为蓝色。测定环氧化物(以环氧丙烷计)最低含量约10ppm、醛,醚、酯、酮、苯等物质对测定无影响。 本法特点:简便、快速、适于工厂控制分析。

The mechanism of reaction between Fe-C melts with low carbon content and CO2 bubbles has been investigated in this paper. The results show: (1) The decarburization rate is controlled by the process of the mass transfer of carbon in melts. (2) At the flowrate of CO2 Q=1.08 cm3/s, T=1823 K, the depth of the CO2-blowing tube in melt h=2.4 cm and the weight of melt W=0.40kg, the bubble-liquid interface area per unit volume of the bath is equal to 2.37×10-2(cm2/cm3). (3) At [C%]<[C%]m (the lowest carbon content during...

The mechanism of reaction between Fe-C melts with low carbon content and CO2 bubbles has been investigated in this paper. The results show: (1) The decarburization rate is controlled by the process of the mass transfer of carbon in melts. (2) At the flowrate of CO2 Q=1.08 cm3/s, T=1823 K, the depth of the CO2-blowing tube in melt h=2.4 cm and the weight of melt W=0.40kg, the bubble-liquid interface area per unit volume of the bath is equal to 2.37×10-2(cm2/cm3). (3) At [C%]<[C%]m (the lowest carbon content during decarburization) and [O%]<[O%]sat. (the saturated [O] content in liquid iron), the contents of carbon and oxygen in the melts are increased with blowing CO2 into the melts.

本文对深吹的CO_2气体与低碳铁液作用的机理进行了分析研究。实验结果表明:低碳下铁液中的[C]传质过程为脱碳速率的限制环节;当CO_2流量Q=1.08cm~3/s,炉温T=1823 K,喷管插入深度h=2.4 cm,铁液重W=0.4 kg时,气泡与铁液的比表面积a=2.37×10~(-2)cm~2/cm~3;当铁液中[C%]<[C%]_m(脱[C]达到的最低含量)和[O%]<[O%]_sat.(铁液中饱和氧含量)时,深吹CO_2进入铁液中就会出现同时增[C]增[O]的现象。

 
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