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衬筒 chèntǒng
avia. bush; sleeve
mech.eng. lining
oil liner; liner jacket
space central liner; barrel
衬筒: 49 phrases in 12 subjects
Aviation1
Chemistry1
Drilling2
Engineering geology1
General2
Metallurgy1
Oil / petroleum7
Plastics5
Polygraphy4
Space2
Technology16
Textile industry7