| |||
rim | |||
washer | |||
spaced ring | |||
caulking ring; gasket ring; packing ring; ring gasket; spacer ring | |||
curb | |||
backing ring | |||
doughnut; grommet; grummet; mantle ring; skim block; spacing ring; stand ring; supporting ring | |||
| |||
curb | |||
| |||
gasketed ring |
垫环: 70 phrases in 20 subjects |