The conditions which have an important influence on metal cutting are work material, cutting tool material, cutting tool geometry, cutting speed, feed rate, depth of cut and cutting fluid used.

对金属切削有重要影响的条件有工件材料、刀具材料、刀具几何形状、切削速度、进给率、切削深度和所用的切削液。

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The feed speed of programming must be corrected for realizing high-efficiency machining, and the calculation method of speed was given.

为了实现高效率加工，需要对编程进给速度进行必要的修正，并给出了速度修正的计算方法。

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The sawing speed curve is unchangeable, but the feed speed curve can be different with different length ratio of members of the feeding mechanism.

锯切速度曲线是不可变的，但进给速度曲线随进给机构杆长比的不同而变化。

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Given these strains, and the political ramifications of food, efforts to feed the 9 billion will sharpen geopolitical conflicts and speed up shifts that are happening anyway.

ECONOMIST: A prospect of plenty