flashboards造句

例句与造句

1. feeding mechanism : up roller, middle flashboard and down bell jar or double bell jar feeding mechanism with hydro-automatic drive, featured as easy operation, convenient maintenance and good air-tightness
   加煤机构：液压驱动自动加煤装置，采用上滚筒中插板下钟罩机构或双钟罩结构，操作简单，维修方便，气密性好。
2. It's difficult to find flashboards in a sentence. 用flashboards造句挺难的