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ruler | |||
surface plate | |||
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ruler plate |
划 线板: 29 phrases in 11 subjects |
Agriculture | 2 |
Automobiles | 1 |
Aviation | 1 |
Electric machinery | 1 |
Genetics | 1 |
Metallurgy | 1 |
Microbiology | 1 |
Shipbuilding | 3 |
Space | 1 |
Technology | 16 |
Textile industry | 1 |