查询词典 zinc sulfate

Through the analysis of the alloy electroplating solution in gradients, the process variables and their relationship between content of manganese in the alloy coating, the optimum process has been obtained, the additive to improve the cathode current efficiency was found; it was found that the deposits with a manganese content 40～60% exhibit excellent corrosion resistance; the corrosion resistance of zinc-manganese alloy coating will be even better after"phosphated"and passivated.

研究发现Na〓SeO〓能显著提高锌锰合金电沉积电流效率。首次用循环伏安法、恒电势电解法、恒电流阶跃法研究了Na〓SeO〓提高电流效率的作用机理。研究发现Na〓SeO〓在锌锰共沉积的条件下在阴极是分两步还原，即：首先在-0.9V处被还原为单质硒，然后在-1.25V处被还原为多硒阴离子。证明了多硒和多硒阴离子都在阴极存在特性吸附

Effects of the mass ratio of organic phosphonic acid to zinc biphosphate, compound system amount, corrosion time and temperature, and pH value on the anticorrosive efficiency were investigated.

以四乙烯五胺、甲醛和亚磷酸为原料合成了有机膦酸类缓蚀剂，与磷酸二氢锌复配，考察了有机膦酸类缓蚀剂与磷酸二氢锌质量比、复配体系加量、腐蚀时间、腐蚀温度及体系pH值对复配体系缓蚀效果的影响。

Objective To study the toxicity of MeHg on photoluminescent bacteria and the inhibitory effects of zinc.

目的：研究甲基汞对明亮发光杆菌的毒性作用及锌对MeHg毒性的拮抗作用。

zinc could inhibit the luminescence rate of photoluminescent bacteria and antagonize MeHg toxicity in certain dose and time.

Zn可以抑制MeHg对发光杆菌发光率的影响，拮抗甲基汞的毒性。

The type of zinc you need is one that is bound with picolinic acid.

类锌你需要之一，是约束与烟酸。

Now, a convenient, efficient pinacol coupling of aldehydes mediated by zinc in good yields has been carried out in ammonia water in the presence of a little crown ether. Adding a small amount of crown ether was highly effective to enhance the yields of pinacol from 63% to 84%.

本文报道一种简便、有效的水相呐偶合反应，它是在含有少量冠醚的稀氨水溶液中，使用锌粉促进醛基化合物进行水相呐偶合反应，其中加入少量的冠醚有助于提高反应的产率，呐醇产率由63%提高到84%。

Previously, it was reported that the pinacol coupling of carbonyl compounds was achieved by zinc under strong base or weak acid condition.

曾经报道过金属锌在强碱介质或弱酸介质中，促进羰基化合物进行水相呐偶合反应。

The company has own resources, another our company has one site of plumbous zinc ore in Wuxuan of Guangxi.

公司拥有自有矿山资源，另我司在广西武宣拥有铅锌矿一处。

Objective: To study the effect of molecular weights of compolymer and sinter temperature of powder on the properties of zinc polycarboxylic cement.

目的：研究聚羧酸锌水门汀液剂中共聚物分子量及粉体烧结温度对水门汀性能的影响。

The properties of zinc polycarboxylic cement is better when the molecular weights of compolymer reaches to 5.2×10^4 and sintering temperature of powder is 950℃.

聚羧酸锌水门汀溶剂共聚物的分子量以5.2×10^4左右为宜，而烧结温度以950℃时较好。

The Porsche Owner: But it's my car!

可，这是我的车呀。

LOX_83}{Oh, another bunch of wackos.

{LOX_83}{呃，又一群怪人。