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piston-ring face
auto. 活塞环外表面
piston ring face
tech. 与汽缸接触的活塞环外表面
Piston ring face
compr. 活塞环外表面与气缸接触的那一面
piston-ring face: 10 phrases in 3 subjects
Automobiles4
Compressors3
Technology3