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tube support
chem. 管支架
el. 管支座
tech. 钻塔内的钻杆垫板; 管支柱; 定位管支撑
tube support: 20 phrases in 8 subjects
Compressors1
Electronics4
Geology1
Nautical1
Nuclear and fusion power2
Oil / petroleum1
Plastics1
Technology9