A high-efficient rectification column was used to reduce the content of azine in wastewater. Azine was stripped from wastewater at the stripping section and concentrated at the rectification section to meet the recovery requirement.
为降低含酮连氮废水中的酮连氮含量,采用高效精馏塔,在提馏段将酮连氮从废水中汽提出来,在精馏段通过精馏将有机物料浓缩,达到回收的要求。
To solve the problem how to produce iron castings having hi-strength and thin-sections namely how to increase quantity of dendrites, how to reduce size of eutectic cells and graphite flakes, as well as how to strengthen the matrix under the condition of relatively high carbon equivalence.
要解决铸铁高强度化、薄壁化的问题,就是要在较高碳当量条件下,增加枝晶数量、细化共晶团、细化石墨和强化基体。
英语网 · 双语娱乐资讯
英语网 · 双语新闻