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lock gate
hydroel.st. 船闸闸门
plast. 装料闸门〈注塑机〉
tech. 船闸的闸首
water.res. 闸门; 水闸; 船闸门
lock gate: 43 phrases in 6 subjects
Agriculture1
Automobiles1
Electronics1
Hydroelectric power stations6
Port facilities2
Technology32