- signalling test
- 发信: post a letter; send transmit ...
- 试验: experiment; test; trial
- 水雷引信试验: test of mine firing mechanism
- 无线电通信试验船: radio research ship
- 发信: 1.(发送信件) post a letter; send2.(发送信号) transmitting
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发信试验的英文
发音:
- signalling test
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