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Adopt imported sewing machine head;
采用进口缝纫机头；
youdao
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This paper introduces a kind of vacuumizing system for X-ray machine head.
介绍一种X线机机头真空处理系统。
youdao
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This paper introduces a kind of vacuumizing system for X-ray machine head.
介绍一种X线机机头真空处理系统。
youdao