查询词典 sulfur

The silver accessories nigrescence changes yellow is the normal natural phenomenon, because in the air and other natural medium's sulfur and the oxide compound and so on have certain corrosive action to the silver, after wearing period of time, will present some small spots, the long time will proliferate Large expanse, will turn the black.

银饰品变黑变黄是正常的自然现象，因空气和其它自然介质中的硫和氧化物等对银都有一定的腐蚀作用，在佩戴一段时间后，就会出现一些微小的斑点，久之会扩散成片，甚至变成黑色。

Later, people made up black gunpowder with niter, sulfur and charcoal of certain proportions on the basis of the formula.

后来，人们根据这个配方，将硝石、硫磺、木炭按一定比例配制在一起，制成了黑火药。

The compression set of nitrile rubber seal components are bad which is vulcanized with systems based on sulfur.

在橡胶密封件硫化体系中，由于硫磺硫化体系压缩永久变形性能比较差，而最常用的过氧化物交联剂过氧化二异丙苯的硫化胶容易产生刺鼻的异味，从而限制了它在高档制品中的用途。

Sulfur dioxide, nitrogen dioxide emissions by more than 56%.

二氧化硫、二氧化氮排放降低56%以上。

The emissions are of great concern, and attempts have been made to reduce discharge of sulfur dioxide and nitrogen oxide.

人们关心排放量的问题，而且已经开始多方努力减少二氧化硫和氧化氮的排放量。

And the Senate that would reduce carbon dioxide, nitrogen oxide, sulfur dioxide, and

这个法案将使美国二氧化碳的排放量达到1990年的水平。

Therefore, we selected sulfur dioxide and nitrogen oxide as key pollutants for reduction and monitoring plan is setup.

我们选择了二氧化硫和氮氧化物作为监测对象，以主要公交车站为监测点，在评估它们对人们的影响的同时，以人为本提出解决方案。

In addition, oxide of sulfur and oxide of nitrogen are produced in the chemical recovery furnace.

另外，在化学回收炉中还产生硫的氧化物和氮氧化物。

Nonreversible chemical reaction involving sulfur or other suitable agent wherein cross links are formed between molecular chains in rubber materials.

硫化是采用硫或者其它适当添加剂处理橡胶原料过程中发生的不可逆化学反应。此种反应在橡胶的分子链间形成横向连接，橡胶的弹性模量和强度会得到提高。

The light cut is lower in sulfur, higher in octane and higher in olefins than the heavy cut.

光裁减是低在硫磺，高在八炭烷里和高的在烯烃里比重的裁减。

He paid $5,000 for this cupcake.

他我这个纸杯蛋糕花了5000美元。

I mean, if you want to, that is

我的意思是，如果你们想吃的话。