必需

Chicken has ahigh biological value because of its high content of essential amino acids and is highly digestible.

鸡由于其必需氨基酸含量高的生物价值高，是非常易消化。

Obviously, large amounts of cyclin B1 existing in spermatids has no effect on adjusting the activity of 〓 kinase, which may be just a signal of the end of cell division and/or a necessary factor for the initiation of the metamorphosis of spermatids. Abdominal high temperature inhibit efficiently the translation of cyclin B1 and 〓 in the spermatogonia and pachytene/diplotene primary spermatocytes.

显然，精子细胞中大量存在的cyclin B1蛋白不会起到调节〓激酶活性的作用，而是作为一种细胞分裂完成的信号，为启动精子细胞变态所必需；（4）腹腔高温使粗线期/双线期初级精母细胞中cdc2和cyclin B1转录本的翻译受阻。

Using these diagrams, thermodynamic analysis is carried out to show the effect of technical conditions on soda decomposition of scheelite. It appears that the concentration of has direct effect on soda decomposition of scheelite. When the alkalinity is low, will hydrolyze to , accordingly the decomposition rate of scheelite becomes lower because of the decrease of . So in order to get higher leaching rate in industry practice, it is necessary to use enough amount of soda to serve as digestion reagent and, certain amount of NaOH to maintain high enough alkalinity.

利用这些热力学平衡图对Na2CO3分解白钨矿的工艺条件进行了分析，认为溶液中浓度直接影响白钨矿分解，而当碱度较低时，Na2CO3将水解生成，从而降低浓度，进而降低白钨矿的分解率；故在工业实践中，为使钨最大限度地转入溶液，除了保证足够的Na2CO3用量，还必需添加NaOH以维持一定碱度。

Automotive frontal area is projected area of automobile driving direction,which is necessary parameter of measuring automotive air drag coefficient.

汽车迎风面积是指汽车在行驶方向的投影面积，汽车迎风面积是求汽车空气阻力系数的必需参数。

Contrast is necessary for the human eye to be able to discriminate between objects and their background.

差别对人类的眼睛是必需的可以在物体和他们的背景之间区别。

Nevertheless, suitable arrangements for the disposal of the dead are required from the start of a displaced person emergency.

不管怎么样，从一开始就适当的处理尸体是灾民紧急救援所必需的。

Because of this, I expect you to do what is necessary, no matter how distasteful it might be.

因为这，我期待你做什麼是必需的，无论如何味道差的它可能是。

A line dividing section is not necessary set.

划分区域的线条不是必需的。

Ok, this is what you have to do...

好了，这就是你必需要做的。。。

It contains all DOM Level 1, 2, and 3 drafts including the DOM requirements document.

它包含所有的DOM Level 1， 2和3的草稿，包括DOM必需文档。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。