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round head | |||
oval head | |||
button head | |||
cup head; spheric head; spherical head | |||
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cap head |
半圆头: 66 phrases in 12 subjects |
Architecture | 2 |
Automobiles | 9 |
Aviation | 1 |
Bridge construction | 3 |
Drilling | 1 |
Electronics | 2 |
General | 1 |
Metallurgy | 1 |
Oil / petroleum | 2 |
Space | 2 |
Technology | 41 |
Textile industry | 1 |