英语词汇“pillar-and-stall system”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	pillar-and-stall system
释义	pillar-and-stall system pillar-and-stall system [′pil·ər ən ′stȯl ‚sis·təm] (mining engineering) A system of working coal and other minerals where the first stage of excavation is accomplished with the roof sustained by coal or ore.
随便看	bush mill stream natural area preserve bushmin, aleksei bushmin, aleksei sergeevich bush moa bush nasturtium bushnell bushnell, david bushnell, horace bushnell park bush, nikolai bush, nikolai adolfovich bush okra bus-hold high overdrive bush out bush oyster bush patrol bush pea bush pig bushpig bush pigs bushpigs bush pilot bush (plant) bush poppy bush pumpkin

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