At installation, insufficient compression 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。
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. 混凝土偏心受压构件,尤其是偏心受压对称配筋柱,强度不满足要求时,可用双面围套加以补强。
Firstly, a dc power supply is generally employed by underwater plasma arc cutting which leads to undesirable cut shape because of the limitation of insufficient compression degree and inclined axial direction. 首先,水中等离子弧切割一般使用直流电源,存在着电弧压缩程度不够、轴指向性不好的局限性,因此切口成形不够好。