Through the calculation on flexivity of drag-chainand length of chain curve,set screw-pull-ing instrumentneeds to be adaptedto suitable period.
通过对牵引的挠度和曲线长的计算,确定需要调整的适当时期。
Through the calculation on flexivity of drag-chainand length of chain curve,set screw-pull-ing instrumentneeds to be adaptedto suitable period.
通过对牵引的挠度和曲线长的计算,确定需要调整的适当时期。
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