The existing problem in operation of siphonal sand filter and innovation were introduced.
介绍了虹吸
器在运行过程中出现的问题及改造措施。
The existing problem in operation of siphonal sand filter and innovation were introduced.
介绍了虹吸器在运行过程中出现的问题及改造措施。
声明：以上例句、词
分类均由互联网资源自动生成，部分未经过人工审核，其表
亦不代表本软件的观点；若发现问题，欢迎向我们指正。
