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water examination
chem. 水质检查
el. 水的调查
hydroel.st. 水质检验
tech. 水质试验; 水质检査; 给水水质检验; 给水水质检验法
water examination: 33 phrases in 6 subjects
Ecology3
Electronics1
Hydroelectric power stations3
Oil / petroleum1
Technology24
Water resources1