Their first descent into the abyss started with an 800 metre ride through tunnels and caverns on the old Miners Tramway, a train hauled by a battery-electric locomotive.
两人先是乘坐老式矿场电吊车穿过了800米的地道和岩洞抵达洞穴。
A new battery charger for mining electric locomotive is developed based on DSP technology.
基于DSP技术研发了一种新型矿用电机车蓄电池充电装置。
KGT used in electric locomotive, that starts steadily speed regulation equation saves electric energy, extends storage battery life.
KGT应用在电机车上起动平稳，调速均匀，节约电能，延长蓄电池的使用寿命。
KGT used in electric locomotive, that starts steadily speed regulation equation saves electric energy, extends storage battery life.
KGT应用在电机车上起动平稳，调速均匀，节约电能，延长蓄电池的使用寿命。
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