underground locomotive for mine
... underground loader 地下装载机 underground locomotive for mine 矿用井下电机车 underground pipeline finder 地下管线探测仪 ...
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提出了一种以恒定电流驱动白光led的矿用直流开关电源，给矿井下的直流电机车和矿灯供电。
Presents a constant current white LED driver for mining DC switching power supply to the mine under the DC power supply locomotives and miner's lamp.
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