A、the shafting’s vertical vibration
B、violent friction and sea water corrosive
C、friction and high temperature
D、violent friction and high temperature
更多“Simplex tailshaft seal equipment’s working condition is terribleThe main cause is （）”相关的问题
A、the good sealing performance and the simple structure B、the good sealing performance and the short life expectancy C、the good sealing performance but the short life expectancy D、the good sealing performance and the lower cost
A、FlashCopy SE （PTC-SE） is much faster than the traditional DS8000 full-volume FlashCopy B、FlashCopy SE （PTC-SE） also supports background copy C、FlashCopy SE （PTC-SE） is optimized for use in cases where a high percentage of the source volume is updated during the life of the relationship D、the additional capacity required forFlashCopy SE （PTC-SE） must only be planned for data which is changed on the source volume during host I/O transaction
A、on the sailing, the water in the aft peak tank should be excluded as much as possible B、the stuffing style ahead sealing shouldn’t have any water leaking out C、Simplex astern sealing shouldn’t have any oil leaking out D、Simplex ahead sealing can have some oil leaking out
客服
TOP
查看正确答案
