To study N-acetylglucosaminidase, clone and express the gene.

为研究该酶，克隆和表达该基因片段。

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Puromycin is used in cell biology to select mammalian cell lines that have been transformed by vectors that express puromycin-N-acetyl-transferase.

在细胞生物学中用嘌罗霉素来选择用载体转化能表达嘌呤霉素- N -乙酰基转移酶类的哺乳动物细胞系。

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The result indicates when analyzing the sample, if using the mass fraction to express the concentration of n…

如果用质量分数表示氧的浓度，应在进口浓度高于出口浓度时取样，否则存在取样分析误差或滞后现象。

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But mathematically, we've mentioned this before, log N or really to be precise, log base 2 of N, is the way you express this mathematically.

但从数学上说，之前我们已经提到过了，准确地说是log，N，以2为底N的对数，这就是它在数学上的表示。

哈佛公开课 - 计算机科学课程节选

It's now exactly that power from which Milton has been excluded by virtue of his blindness -- light: "Hail holy Light, offspring of Heav'n first-born, / Or of th' Eternal Coeternal beam May I express thee unblam'd?"

而是弥尔顿已经被失明剥夺的一种力量,圣光，你是上帝最初的产物，永恒的光束,我是否可以向你表达我无限的敬意“

耶鲁公开课 - 弥尔顿课程节选

Spencer had been raising money for small companies at Capital Express, in Lyndhurst, N.

FORBES: You bet your life

It could obtain the guarantee thus far not provided by the United States or Britain namely that the use of elements of the multinational force would not occur without the express approval of the Soviet Union, either through bilateral contacts or through the U.N.

CENTERFORSECURITYPOLICY: Scorecard For Moscow��s ��Double Game�� In Iraq

It could obtain the guarantee thus far not provided by the United States or Britain -- namely that the use of elements of the multinational force would not occur without the express approval of the Soviet Union, either through bilateral contacts or through the U.N.

CENTERFORSECURITYPOLICY: Scorecard For Moscow's 'Double Game' In Iraq