unload roof coal 放顶煤
The gas light went a little lower; someone started to unload coal; CATS could be heard on the back fences.
煤气灯的光稍微暗了一点，有人开始撤煤火；还可以听到后院篱笆那儿的猫叫声。
BUYER at its own expense shall unload Coal in bulk, off vessel at Discharge Point, free of all risk and damage to SELLER and vessel.
买方将自担费用，在卸货地点卸下散货煤炭，卖方和船方不承担所有风险和损害赔偿。
Through the alteration of water, material unload system and the fabric of filtration, the optimization for coal and mud water system is achieved, work efficiency is raised highly.
通过对过滤机的卸水系统、卸料系统及过滤机滤布的改造，实现了煤泥水系统的优化，大大地提高了过滤机的工作效率。
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