primary means的意思|示意

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primary means相关短语

1、 primary means of escape 主要避难通道,主脱险通道

2、 dipping coil primary means 电磁式检测设备

3、 primary means of transportation 主要的交通手段

4、 dipping g coil primary means 电磁式检测设备

5、 primary y means of escape 主要避难通道