钢管管材长度的在线检测是实现热连轧的基础。
On line length measurement of steel tube is the key point for continuous rolling.
本文介绍了密封面作用长度的快速检测装置，此装置适用于发动机中进排气门的在线检测。
This paper introduced the fast detection device of acting length of the sealing face which is suitable for on line detection of inlet and exhaust valve of the engine.
本文介绍了密封面作用长度的快速检测装置，此装置适用于发动机中进排气门的在线检测。
This paper introduced the fast detection device of acting length of the sealing face which is suitable for on line detection of inlet and exhaust valve of the engine.
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