所有的人都住在一个大工厂附近，她在当地的水里发现了一种叫做铬的化学物质。

All the people lived near a big factory and she discovered that there was a chemical called chromium in the local water.

youdao

还原生成的三价铬的量或未反应的重铬酸钾的量能被测出。

Either the amount of reduced chromium or the amount of unreacted dichromate can be measured.

youdao

缸体是由灰铸铁或含有镍或铬的合金铸铁整体铸造而成的。有的缸体由铝浇铸而成。

The block is cast in one piece from gray iron or iron alloyed with other metals, such as nickel or chromium. Some blocks are cast from aluminum.

youdao

d1 2 3 And we can do that just going along, 3 d 1, 2 3, and the problem comes when we get to chromium here, which is instead of what we would expect, 4s23d4 we might expect to see 4 s 2, 3 d 4.

我们能做的就是继续，问题出现了,当我们来到铬元素时，它不是我们预期的那样，我们可能预期。

麻省理工公开课 - 化学原理课程节选