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In addition, the effect of eight general inorganic positive ions on the cellulase activity was also observed.

还对常见的八种无机阳离子对纤维素酶活性的影响进行了研究。

However, cellulose acetate breaks down at high temperatures, is pH sensitive (can only operate between pH 3 to 6), and is broken down by C ions.

然而，纤维素醋酸酯在高温时降解，对pH值敏感(只能在pH值为3至6之间操作)，也可被碳离子降解。

The mechanism of removing heavy metal ions and the stability of sawdust cellulose xanthate were also discussed.

并对木屑黄原酸酯去除金属离子的作用机理和木屑黄原酸酯的稳定性进行了分析。

The effects of the dosage of sawdust cellulose xanthate,reactive time,pH value,temperature on the removal of heavy metal ions in wastewater were investigated.

结果表明，在常温条件下，pH值在5～10范围内，木屑黄原酸酯对Cu2+，Ni2+，Zn2+的去除率达98%以上，处理后废水中Cu2+，Ni2+，Zn2+的含量达到国家排放标准。

The coordination number of the cental Ln of the above two complexes is 8 or 9, moreover, the coordination environments of the cental Ln ions are also appreciably different.

这2种Ln双核配合物的中心金属离子Ln的配位数分别为8和9，配位方式也略有差异。

In one cubic centimeter of air there are about 2,000 ions.

一立方厘米的空气中约有2000个离子。

In this thesis the planar bilayer lipid membranes inlaid with oxide cholesterol , phosphatidylcholine or cephalin have been prepared .The effects of membranes formulas on membranes stability and zinc ions transfer ability have also been studied.

中文摘要采用氧化胆固醇与磷脂混合作为成膜液制备双分子层脂质膜的方法，研究了制备平板双分子层脂质膜的配方和成膜条件，并对制得的双分子层脂质膜的稳定性、离子通透性、离子选择通过性能、双层膜中氧化胆固醇对通透性的影响等进行了研究。

The doping of a small amount of cerium ions has no influence on the structure of the host.

X射线衍射分析结果表明合成样品为YAG纯相，稀土离子的少量掺杂不改变基质YAG的结构。

Catalytic action of metal ions, especially cerium ion, in the decomposition of t-butyl hydroperoxide was investigated.

本文研究了金属离子，特别是铈离子在叔-丁基过氧化氢分解反应中的催化性能。

Cesium and water, and even and low temperature to - 116 degrees of ice can occur with violent reaction, also can generate stable halogen halide, this is because it is caused by large radius of ions.

铯和水，甚至和温度低到-116℃的冰均可发生猛烈反应，与卤素也可生成稳定的卤化物，这是由于它的离子半径大所带来的特点。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。