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| direct handling | |||
| direction operation | |||
| direct operation; direct servicing | |||
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| direct manipulation of the DNA | |||
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| contact servicing | |||
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直 接操作 : 17 phrases in 7 subjects |
| Automobiles | 1 |
| Aviation | 1 |
| Chemistry | 1 |
| Economy | 1 |
| Electronics | 7 |
| Technology | 5 |
| Textile industry | 1 |
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