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протрава nstresses
oil.proc. 留色剂; 媒染; 酸洗液; 稀酸液
tech. 媒染剂; 酸洗; 浸酸; 腐蚀剂; 毒杀 (细菌,害虫等); 浸蚀; 浸煤染剂; 浸以消毒剂
протрава: 11 phrases in 4 subjects
Chemistry2
Construction2
General2
Technology5