hump lead 中文意思是什麼
hump lead
解釋
駝峰溜放線-
Hump lead speed reducer is a special equipment urgently needed in railway car grouping station of small or medium capacity
摘要駝峰減速器是當前中、小能力車列編組站駝峰改造過程中急需研製的一種專用調速設備。
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