Align adapter bushing or gear operator (3) bore with valve stem (5).
用阀门的阀杆(5)对准适配器衬套或持论操作机构(3)镗孔。
Stem: Stem has long engagement with yoke bushing for accurate seating.
阀杆：阀杆与轭架有很长的啮合段，有助于阀座密封的精确对准。
As the shut-off valve is seated, a passage 41 in its stem connects with ports 42 in the guide bushing 37 so as to allow inlet air to pass though the valve stem to a housing port 44.
在关闭阀是坐在座位上，一个通过41个在其干连接与港口42轴套在指南37，使空气入口，虽然通过的阀干，一个住房端口44。
As the shut-off valve is seated, a passage 41 in its stem connects with ports 42 in the guide bushing 37 so as to allow inlet air to pass though the valve stem to a housing port 44.
在关闭阀是坐在座位上，一个通过41个在其干连接与港口42轴套在指南37，使空气入口，虽然通过的阀干，一个住房端口44。
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