这句实在弄不明白? 这句实在弄不明白,这是 低温泵 推杆密封更换中的一个步骤: When the warm end is in the top DEAD center position and the pushrod is in bottom dead center, a gap between the pushrod and the crosshead liner flange willappear. This gap Will allow the required clearance to remove the seal housings,one at time. 查看更多2个回答 . 3人已关注