求翻译：由运动分析可得：割刀的进程 应该尽量与动刀片的刃口高度相差不大即 ；实际工作根据作物的高矮、倒伏情况适当选择刃速及行走速度的比例关系 取0.8—1.0左右。是什么意思？

By motion analysis: the process of cutting blades should try to move the edge of the blade height or less that is, proper selection of blade speed and walking speed; practical work according to the crops, the height, lodging, the proportion of take 0.8-1.0.

Movement analysis: knives can be the process should be as far as possible, with the blade of the knife-edge is not much difference between the height; the actual work is based on the short crop, Down, select the appropriate order as soon as possible and walk the proportional relationship between spe

May result in by the movement analysis: The cutter advancement should as far as possible with move the bit the cutting edge to differ highly not not in a big way namely; The practical work according to crops' height, the lodging situation chooses the edge suitably fast and walks the speed proportion

By motion analysis: knife should try and move the process of cutting edge height the same; the actual lodging where applicable according to the height of the crop, select the blade speed ratio between walking speed and taking about 0.8-1.

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