revolving grate是什么意思

用法例句

8 MW hot-water boiler equipped with staggered grates is described along with the presentation of two items of patented technology, namely staggered grates and cashing-pipe convection heating surfaces.

8MW错动炉排热水锅炉的研制过程和经验 ,同时介绍了两项专利技术 :错动炉排及套管式对流受热面 ,在小型供暖锅炉方面又提供了一种新产品。