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桥塞 qiáosāi
dril. bridge; bridging; bridging off
oil bridge plug; bridging plug
桥塞作业 qiáosāi
dril. bridge plug service
桥塞: 57 phrases in 8 subjects
Automobiles1
Construction1
Drilling19
Geophysics1
Metallurgy1
Mining6
Oil / petroleum20
Technology8