化学杀虫剂，一开始采用了DDT(1972年被禁止)并在二战后首次被广泛使用。而它却一直被认为是导致蜜蜂减少的潜在元凶。
Chemical pesticides, which first gained widespread use after World War II with the introduction of DDT (banned in 1972), have long been suspected as a potential cause of honey bee declines.
制药生产工艺的放大是化学工程一个重要的成功的范例，例如在二次世界大战中，青霉素的大批量供应拯救了很多人。
Sealing up PC production processes is major success story for chemical engineering. For example the bulk supply of penicillin in World War II has helped many.
在胶体化学进展的框架下，现已获得不同II-VI型和III-V型半导体材料的高质量纳米晶。
In the framework of the colloidal chemistry approach, high quality nanocrystals of different II-VI and III-V semiconductor materials can now be obtained.
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