单词	gas ducting
释义	gas ducting 充气管道
随便看	mineral matter content mineral-matter-free basis mineral matterin coal mineral matter of coal mineral medicinal identification mineral medicinal oil mineral medicine mineral medium mineral membrane mineral membrane electrode mineral metabolism mineral methods mineral mhase composition mineral micro-expansion agent mineral micrology mineral micro-powder mineral microscope Mineral milling machine operator Mineral-milling-machine operator mineral mining mineral mix mineral mixed material mineral mixing material mineral mixture mineral model