A special tool is introduced here to measure the curved object radius of the horizontal oil tank and railroad tank car.
本文介绍了一种检定卧式油罐及铁路罐车测量曲线体半径的专用工具。
A special tool is introduced here to measure the curved object radius of the horizontal oil tank and railroad tank car.
本文介绍了一种检定卧式油罐及铁路罐车测量曲线体半径的专用工具。
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