leaf filter是什么意思

用法例句

The type of GL louver filter is a new kind of product applying on electric locomotive and there is only just a little experiment research about the new filter by technicians in corporations.

过滤器的性能研究涉及气固两相流,本文首先介绍了气固两相流的研究方法,回顾了与GL百叶窗过滤器类似的其它过滤器研究概况。