intercom telephone
... intercom telephone 船内对讲电话 intercom telephone 内部对讲电话 intercom 内部通信 ...
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内部对讲电话增音机 interphone amplifier
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对所有设施,特别是对大型就业机会,双向无线电对讲机或内部电话线应采用,以确保正确的号码插座和配线架,在测试中。
On all installations, and particularly on large jobs, two way radios or internal telephone lines should be used to ensure correct numbering of outlets and patch panels during testing.
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