实验室试验和工业生产表明，马钢所采用的炼铁污泥浮-重选富集工艺是可行的，它具有流程顺，回收铁效果好、去锌率高等特点。

The laboratory experiment and production show that the flotation and gravity-separation process to treat ironmaking sludge in Ma Steel is feasible.

youdao

是的，事实上，这里的光子没有足够的能量，去从锌表面逐出一个电子。

Yes. In fact, there is not enough energy in a single photon to go ahead and eject an electron from this zinc surface.

youdao

不管是人类、动物、植物，甚至最小的微生物，都需要锌去维持生命。

Humans, animals, plants and even the smallest micro-organisms need zinc to function.

youdao

Yes. In fact, there is not enough energy in a single photon to go ahead and eject an electron from this zinc surface.

是的，事实上，这里的光子没有足够的能量,去从锌表面逐出一个电子。

麻省理工公开课 - 化学原理课程节选