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packing gland |
密封 衬 : 43 phrases in 14 subjects |
Automobiles | 7 |
Aviation | 1 |
Chemistry | 1 |
Compressors | 3 |
Ecology | 1 |
Electronics | 2 |
Engineering geology | 1 |
General | 1 |
Metallurgy | 1 |
Mining | 1 |
Oil / petroleum | 2 |
Plastics | 2 |
Space | 1 |
Technology | 19 |