The changed roat effect of scraper conveyor head and end , and application state for recent years are introduced .
介绍了综采配套设备中的刮板输送机头、尾部进行变线的作用和大同矿务局近年来所使用刮板输送机的变线情况。
You said it 's the same doll that roat described .
而且正是罗特描述的那个娃娃。
Application of changed roat type scraper conveyor
变线式刮板输送机的应用
roat