To study N-acetylglucosaminidase, clone and express the gene.
为研究该酶，克隆和表达该基因片段。
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。
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。
For node number n , the series equations can be written as a linear equations, also can be express as a triangle array as following.
此线性方程组可用追赶法求解，也可用高斯法求解，还可以采用迭代法求解。
Compared with SPAD readings, the normalized redness intensity (NRI), with a high rvalue of 0.541-0.780 with conventional N parameters, could better express the N status of rice.
红光标准化值与叶绿素仪SPAD读数相比能更好地表征水稻幼穗期的氮素营养状况， 与常规测试指标的相关系数介于0.541～0.780之间。
Compared with SPAD readings, the normalized redness intensity (NRI), with a high rvalue of 0.541-0.780 with conventional N parameters, could better express the N status of rice.
红光标准化值与叶绿素仪SPAD读数相比能更好地表征水稻幼穗期的氮素营养状况， 与常规测试指标的相关系数介于0.541～0.780之间。
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