Windows 处理事件的方式完全是通过窗口过程以及一成不变的 WPARAM/LPARAM 参数，按照现代编程标准来说，简陋而粗糙。

The way Windows does events, with its omniversal window proc and type-deadly WPARAM/LPARAM parameters, is downright primitive by modern programming standards.

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通过正交试验研究了磨削参数对船用螺旋桨叶片表面粗糙度的影响。

The effects of grinding parameters on surface roughness of Marine propeller blade were studied by using orthogonal test.

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分析了不同加工参数对被加工内圆表面粗糙度和研磨量的影响。

Effect of different machining parameters upon the inner surface roughness and the removal rate was analyzed.

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