查询词典 concentration of

These results confirmed that the element concentration of aerenchyma cell wall undergoes dynamic changes during different developmental stages, and a low Ca with high Zn and Cu concentration are needed for cell expansion.

Cu和Zn在细胞壁中的积累呈高度的直线关系，回归分析显示，二者呈现定量关系，推测它们可能有共同的或者类似的转运和吸收机制。

Results and conclusion:MTX is safe for patients when serum concentration of MTX at 48 h is less than 0.1 μmol/L.With sufficient hydration and alkalinization,it is safe to halt rescue when serum concentration of MTX at 48 h is about 0.3 μmol/L

中国医学科学院北京协和医学院血液病医院2005年把HD-MTX化疗后48 h停止解救的最小浓度提高到0.3 μmol/L左右，本研究总结133例ALL标危患儿应用此方案治疗的安全性结果。

Low concentration of allyl alcohol helped to increase the reaction rate and high concentration of H2O2 could decrease the selectivity to glycidol using water as a solvent.

当催化剂用量一定时，以水为溶剂，较低的烯丙醇浓度更有利于反应的进行，而较高的双氧水浓度则会降低产物的选择性。

The influence of the substrate concentration, temperature, pH value, the concentration of certain inorganic ions(Mg, Mn, NH4 +), actinomycin D and α-amanitin on the polymera

观察了底物浓度、温度、pH等与转录活性的关系；探讨了Mg~、Mn~、NH_4~+等离子和放线菌素D、α-Amanitin对转录活性的影响。

The analysis and test results show that the concentration of stresses at the end of fillet welds between the tensile anchor plate and the tensile anchor tube is obvious, and the maximum principal tensile stress occurs in the stress concentration region.

结果表明，锚拉板与锚拉筒之间的连接焊缝下端部应力集中明显，最大主拉应力出现在该区域；在设计疲劳荷载作用下，该结构关键构造细节处均未发现疲劳裂纹，结构疲劳性能满足设计要求。

The concentration of free phenol in the waste water was measured by the 4-amino antipyrine method. The results showed that the concentration of free phenol was below 100 mg/kg. An optimized technique was recommended.

结果表明，采用这种新型催化剂可使所产生的废水中游离酚含量控制在100 mg/kg以内，优化出了一种生产Novolac的绿色环保新工艺。

Methods: Minimal inhibitory concentration and minimal bactericidal concentration of mulberry leaves were determined in vitro.

测定桑叶水提物及50％，70％，85％，95％醇提物的最低抑菌浓度和最低杀菌浓度。

We adjust the appropriate bivalence cationic concentration, on the concentration of a Mg〓 or Ni 〓, to extend the supercoils of plasmid DNA pBR322 into rings.

采用改进的蒸发液滴中流体毛细流动法，用于展开和固定适于AFM研究的大环状DNA。

The bulblets enlargement can not be affected significantly by AC, but the quality of bulblets can be enhanced in the medium with appropriate concentration of AC. Medium with higher concentration sucrose can promote bulblet enlargement but inhibit bulblet formation.

L-1多效唑有利于子球再分化；活性炭对子球增大无明显影响，但适当浓度的活性炭能提高培养子球的品质；高浓度蔗糖能促进子球增大，但对子球再分化有抑制影响。

In this research, the concentration of PbCrO4 in the reaction can be as low as 58g-L-1 without any ill influence on the experiment. Therefore, some leachate can be used to produce yellow chrome directly without concentration.

乙酸铅或硝酸铅与代替重铬酸钠溶液的铬渣滤液反应时，其用量应高于理论值，大约为理论值的1.10～1＊倍，才能使六价铬充分反应，使生成的铬黄量达到最大值。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！