double drum scraper hoist

double drum scraper hoist
双滚筒扒矿绞车

English-Chinese dictionary of mining (英汉矿业大词典). 2013.

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  • environmental works — ▪ civil engineering Introduction       infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …   Universalium

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