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lswjjzp: 松软地带或水中工作:在软土地带工作时,应了解土壤松实程度,并注意约束铲斗的发掘规模,防止滑坡、塌方等事端发作以及车体沉陷较深。(来自:挖掘机出租公司 http://www.lswjjzp.com)
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