The manufacturer only provides operating specifications of digital ultrasonic inspection instrument, without design principle it will induce understanding deficiency on the function.
数字型超声波检测仪制造厂家只提供了操作规程，没有仪器设计原理，这样容易导致在使用中对有些功能理解上的欠缺。
The manufacturer only provides operating specifications of digital ultrasonic inspection instrument, without design principle it will induce understanding deficiency on the function.
数字型超声波检测仪制造厂家只提供了操作规程，没有仪器设计原理，这样容易导致在使用中对有些功能理解上的欠缺。
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