没有必要去追求双手达到数学意义上的精确配合；

There is no need to mathematically match the two hands;

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它能与各种机械的起动和关机特性精确配合，从而就可最佳地工作。

It can conjugate with startup characteristics and shutdown characteristics of various machines accurately, so it can work optimally.

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精密加工的泵体可使“D”型轴承与齿轮轴精确配合，确保齿轮轴不偏心，以防齿轮磨损。

Precision machining pump body can make "d" type bearings and gear axle, ensure accurate gear axis gear eccentric wear, not to.

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