片语
chemical etching[化学] 化学腐蚀;化学侵蚀
chemical attack resistance抗侵蚀性
free from chemical attack无化学物品的腐蚀
resistance to chemical attack抗化学腐蚀能力
chemical weapons attack化学袭击
physical-chemical attack物理化学
aerial chemical attack空中化学袭击
chemical surface attack化学表面侵蚀
massive chemical attack大规模化学攻击
conduct of chemical attack实施化学袭击