A rubber band can be elongated to several times of its normal length.
橡皮带能拉长到平常长度的几倍。
Introduces the rationale and techniques of common normal length measurement in the test and mapping of parameters for gears.
介绍了齿轮精度检测和齿轮参数测绘中用公法线长度测量的基本原理和基本方法。
Introduces the rationale and techniques of common normal length measurement in the test and mapping of parameters for gears.
介绍了齿轮精度检测和齿轮参数测绘中用公法线长度测量的基本原理和基本方法。
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