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| 耦合剂〔介质〕 | |||
| 耦合剂介质 | |||
| 耦合介质; 耦合剂; 超声波法 (一种非破损的检验方法) | |||
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couplant : 2 phrases in 2 subjects |
| Metallurgy | 1 |
| Technology | 1 |
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