Results the correct accomplishments of LIFTING action were influenced by many factors, of which the adjustment of center of gravity was an important one.
结果撑起动作正确完成受多种因素的影响，其中最主要的影响因素是重心的调整问题。
The limit of gravity center position is to assure the uniformity of spring adjustment of shaft weight.
机车重心位置的限制，也是保证机车轮轴重调簧均匀的前提。
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