The existing problem in operation of siphonal sand filter and innovation were introduced.
介绍了虹吸式砂滤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.
介绍了虹吸式砂滤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，其表达内容亦不代表本软件的观
；
现问题，欢迎向我们指正。
