半数的例句大全

Objective To measure the half lethal dose ( LD_ ( 50)) of paraquat in mice.

目的测定百草枯对小鼠的半数致死量（half lethal dose，LD50）。

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To Measure the Half Lethal Dose of Paraquat in Mice

百草枯半数致死量测定

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Most of the students in this class are good at mathematics.

这个班的学生多半数学很好.

《现代汉英综合大词典》

A rise in neutralizing antibody in the convalescent serum has been revealed to occur only in one half of the infections.

研究（实验）解释康复病人血清内中和性抗体的增加，仅见于半数感染病例中。

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China is ordering half of its dairy producers to close shop in effort to tidy up the country's tainted milk industry and to usher in a new era of consumer safety.

中国要求其半数乳品生产商关门歇业，以整顿中国受污染的乳品行业，并开启消费者安全的新时代。

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And half lethal dose was several hundred folds than the clinical dose.

半数致死量是推荐临床剂量的几百倍。

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Establishing fat embolism rat model and determination of half lethal dose

大鼠脂肪栓塞模型的建立及半数致死量的测定

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Employment regulations were also mentioned by half the businesses as burdensome cent citing planning red tape.

有半数企业提出雇佣监管比较繁重,29%企业举例列举了官方规划方面的繁文缛节.

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The sea was rough and half the passengers seasick.

海面波涛汹涌,“半数”旅客晕船.

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DEHP, DBP and DOP can shorten 50% Lethal Time ( LT50) of drosophila, apparently making its average longevity and average maximum longevity shorter;

DEHP、DBP和DOP可使果蝇半数死亡时间提前，并明显缩短果蝇的平均寿命和平均最高寿命（P<0.01）；

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Median lethal concentration to human embryo lung fibroblastic cell is about 41.3 μ g/ ml.

引起半数人胚肺成纤维细胞生长抑制的浓度为41.3μg/ml。

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Methods Immersion method of pesticide was used to assay the medium lethal concentration ( LC_ 50) of the fourth-instar larvae.

方法采用浸渍法，测定Ⅳ龄期幼虫的半数致死浓度（LC50）。

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A SAS program to calculate median lethal dosage ( LD_ ( 50)) of pesticides, named LD50-SAS, was developed based on the algorithms established by Bliss.

基于Bliss概率单位法，编写了用于计算半数致死量（LD50）的SAS程序（LD50-SAS）。

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Metho ds: Mice acute toxicity test ( median lethal dose, minimum lethal dose, maximum tolerance dose);

方法：小鼠急性毒性实验（半数致死量、最小致死量、最大耐受量）；

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The oral acute toxicity test showed LD50 ( medium lethal dose)> 5.5 g/ Kg. Such result demonstrates that the synthesized product is nontoxic according to the classification of acute toxicity standard.

通过对合成的产物进行急性经口毒性试验，发现其经口半数致死量（LD50，medium lethal dose）大于5.5g/Kg，按照急性毒性分级标准确定该依布硒林衍生物属实际无毒级。

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Median lethal time, mean lifespan and mean maximum lifespan of drosophila fed with different concentration of ponceau 4R were lower than those in control groups dominantly ( P < 0.05 or P < 0.01) in survival experiment, and a dose-response relationship was shown.

生存试验中各浓度组雌雄果蝇的半数死亡时间、平均寿命及平均最高寿命均较对照组缩短（P<0.05或P<0.01），且存在剂量-反应关系。

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More than half of leading universities discriminate in favour of students from deprived backgrounds.

超过半数的重点高校对来自边远落后地区的学生给予特殊的优待.

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The death ratios were observed and the median lethal dose ( LD 50) was calculated.

观察10d动物的存活情况，计算昆明小鼠单宁经口半数致死量（LD50）。

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The estimation of median lethal dose or effective dose by an ordinary curve fitting method

曲线配合法在测定半数致死量上面的应用

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The companies in host countries master more than a half ownership of the joint ventures.

东道国企业掌握过半数所有权的合资企业。

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