The new "Olympic" Beijing of multiple ring roads would have shocked him.
新“奥运”北京的那些条条环城大道恐怕会让他大吃一惊吧。
The improvement of Multiple centrifugal pump sealing protection ring for ammonia production was introduced.
介绍了合成氨生产中多级离心式打水泵密封保护环的改造。
Multiple V-ring packing, combined with live loading, maintains packing compression under high-cycle and severe service applications.
多重V形环填料，组合动负载，维护填料压缩，适用于使用频率高，环境严酷的应用场合。
应用推荐