单词	dull coal
释义	dull coal 暗煤
随便看	double driver plate double drop frame double drop machine double drum air driven hoist double -drum boiler double-drum boiler double drum boiler double drum drawworks double drum drier double-drum dryer double drum dryer double drum dryer with top-feed double drum hoist double-drum hoist double drummer double drum scraper double drum scraper hoist double drum separator double drums vibratory roller double drum system boiler double-drum winch double drum winch double -drum winch double-drum winder double-dry calorimeter 鞔鞕鞗鞘鞙鞚鞜鞝鞞鞟壁钟壁钱壁陡壁障壁饰壁龛壅壅土壅培壅塞