This passage introduced how to develop the new flocculants (PFZSS) for wastewater treatment through adding iron(III) ion zinc(II) ion in the silicic acid and controlling the reactive condition.

本文在聚硅酸中同时引入铁、锌两种金属离子，控制好工艺条件，研制新型水处理药剂——聚硅酸硫酸铁锌（PFZSS）。

youdao

This paper introduces the controlling method to do roll gap regulation used of ABB MASTER system on medium small section mill of Laiwu iron and steel group co.

介绍了莱钢中小型轧钢车间轧机采用ABB MASTER系统进行辊缝调整的控制方法。

youdao

Setting measuring and controlling instruments in cupola will achieve significant effect in improving cupola operation, producing better quality molten iron and benefiting energy saving.

冲天炉配装检测和控制仪表，对于改善冲天炉操作，获得优质铁水和节省能源等，都具有重要作用。

youdao

Rupert Murdoch is known for controlling his media empire with an iron fist.

FORBES: More on Murdoch: News Corp Reshuffles Board, but Governance Risks Remain

We're not going to front like we understand exactly how it works, but two IBM researchers in California have announced that they've gotten closer to controlling the orientation and magnetic spin of individual iron atoms on a copper surface, which would have huge implications for nanotech storage -- imagine the basic tech in your hard drive shrunk down the molecular level.

ENGADGET: IBM researchers get closer to nanotech hard drives