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Can you see this dark colored line on the X-ray?
在X光片上的黑线你看得见吗？
youdao
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F. production line, and meantime equipped with facing and chamfering machine, X ray in...
同时配套平头倒棱机、x射线探伤装置、水压试验机等设备。
youdao
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F. production line, and meantime equipped with facing and chamfering machine, X ray in...
同时配套平头倒棱机、x射线探伤装置、水压试验机等设备。
youdao