The synthesis of DPC by transesterification is a novel method substituted for conventional phosgene method.

Many hazards exist in TDI installations involving the syntheses and the reaction with phosgene.

甲苯二异氰酸酯(TDI)装置生产过程中涉及到光气合成及光气化反应,存在多种危险有害因素.

Acid phosphatase was initially contained within a continuous membrane in a sedimentable particle.

酸性磷酸酶最初包含在可沉淀颗粒的连续膜内.

Similarily, the soil hydrogen peroxidase, urease and phosphatase activities were increased obviously.

显著增强土壤过氧化氢酶 、 酶和磷酸酶活性.

The activity of acid phosphatase in open-angle glaucoma was lower than that in closed-angle glaucoma.

见开角青光眼酸性磷酸酶的活性低于闭角青光眼.

The enzyme was acid phosphatase.

这酶是酸性磷酸酶.

Two phosphate mines, one in Hubei and the other in Guizhou, are being speedily built.

两座磷矿, 一座在湖北,一座在贵州, 正在加速建设.

phosphate-free washing powder

无磷洗衣粉

In chapter 4, the residual organic solvents in Dexamethasone Phosphate was determined with packed column GC.

第四章应用填充柱气相色谱法对地塞米松磷酸钠中有机溶剂残留量进行了测定.

Eat: Lack of potassium phosphate can cause depression.

吃: 缺乏钾磷酸盐可能导致消沉.

Also , major research results for removing iron by phosphate has been introduced.

介绍了磷酸盐除铁的主要研究成果.

For the stainless steel post group, 1.25 mm diameter posts were cemented with zinc phosphate cement.

对于不锈钢桩组, 桩腔预备的直径为1.25mm,用磷酸锌粘固粉粘固.

Copper wire with yellow metal mesh, phosphate copper wire, stainless steel wire woven into material.

金属筛网用黄铜丝 、 磷铜丝 、 不锈钢丝为原料织成.

Bowl mills have not been widely employed for phosphate rock to date.

钵状磨矿机至今尚未广泛应用于磷矿的磨碎.

The surface treatment process for ZM 5 using phosphate is investigated.

研究了ZM5镁合金磷酸盐表面处理工艺.

RESULTS Both of the methods can determine the content of phosphate rapidly and accurately.

结果两种方法均能准确快速地测定样品中的磷酸盐.

Ingredients include biodegradable cleaning agents. Contains no phosphates.

成分当中包含可降解生物清洁剂, 不含磷酸盐.

As calcium concentration increases and phosphates are injected, the probability of precipitation increases.

随着钙浓度的升高和磷酸盐的注入, 产生沉淀的可能性增加.

Lime softening process is often applied in removing hardness and phosphates.

石灰软化工艺通常用来去除硬度和磷酸盐.

The seed viability was correlated with SOD and acid phosphates activity.

种子的生活力与超氧化物歧化酶、酸性磷酸酶的活性呈正相关.

It is introduced that analyzing phosphine by GC method is a good method.

介绍了二氧化碳中的磷烷分析.