At installation, insufficientcompression of the sealing pad behind the carbon ring seal of the expander results in oil entrance to expander body and to the corresponding pipeline.
由于膨胀机碳环密封后面的密封垫片在安装时未被充分压紧，使膨胀机机体及相应管道进油。
2
In case of insufficient strength in reinforced concrete eccentric compression members, especially of symmetric reinforced eccentric compression column, double encircling can be used for strengthening.