First floor depth of a house six, around are the porches.底层进深六间, 前后为廊.Graphite materials can be porches for the separation of structure.石墨材料具有可逐层分离的结构.From standin'on corners and porches just rappin '.从街头和门厅前的说...
The main reason is that cavitation erosion occurred in pervasion pipe of lubricator.经检查发现,主要原因是注油器扩散管汽蚀,以致注油器工作不正常,润滑油压偏低.Pay close attention to the conditions of lubricator and down - hole SSV, etc. during operation.作业期...