a penetrant wind from the north.
刺骨北风
a penetrant wind from the north.
刺骨北风
Its subject coverage includes: holography, shearography, tomography, radiography, and interferometry;ultrasonic, eddy current, penetrant, and acoustic emission testing;
它主题报导包括:统计法实施对机械加工制品在制造期其间质量改善;
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