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stave | |||
notchboard | |||
concave; gravure; intaglio; notch board | |||
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concave |
凹板 : 146 phrases in 15 subjects |
Agriculture | 11 |
Architecture | 8 |
Automobiles | 13 |
Aviation | 1 |
Chemistry | 1 |
Drilling | 1 |
Ecology | 1 |
General | 3 |
Metallurgy | 9 |
Oil / petroleum | 1 |
Plastics | 2 |
Rowing | 1 |
Surgery | 2 |
Technology | 91 |
Textile industry | 1 |