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垫环 diàn huán
gen. rim
agric. washer
dril. spaced ring
met. caulking ring; gasket ring; packing ring; ring gasket; spacer ring
roll. curb
space backing ring
tech. doughnut; grommet; grummet; mantle ring; skim block; spacing ring; stand ring; supporting ring
【压】 垫环 diàn huán
met. curb
垫环 diàn huán
met. gasketed ring
垫环: 70 phrases in 20 subjects
Architecture1
Automobiles6
Aviation1
Chemistry1
Compressors2
Construction1
Drilling1
Electronics2
Engineering geology1
Footwear1
General3
Mechanics2
Metallurgy10
Nautical2
Oil / petroleum3
Plastics1
Refrigeration1
Steel production1
Technology27
Textile industry3