... scraping dredger 刮斗式挖掘机、刮板式铲泥机 scraping-bucket conveyor 刮斗式输送机 scratch hardness of coarse aggregate 粗集料的刻痕硬度 ...
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输送设备：系列螺旋输送机，系列斗式提升机，系列埋刮板输送机等。
Transportation equipment: series screw conveyor, the series bucket elevator, the series buried scraper conveyor, and so on.
没有埋刮板输送机经常出现的卡链、飘链、断链现象和斗式提升机经常发生的打滑、掉斗现象。
Often appear no buried scraper conveyor, disconnection of chain and chain, and the bucket elevator, off the bucket of a spin occur frequently.
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