The problem is that testing has to use that thin pipe to discover failures.
问题是测试必须使用那个细管道来发现错误。
Plug in power, connect the air source and testing pipe.
插上电源，接上气源，接通检测管。
The production process, testing and application of the wound pipe are presented.
这里介绍了该新型管材的生产工艺、性能测试及应用研究现状。
The production process, testing and application of the wound pipe are presented.
这里介绍了该新型管材的生产工艺、性能测试及应用研究现状。
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