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。
The air distribution mechanism is composed of an air inlet pipe, a housing, and a burning cylinder.
配风机构是由进风管、外壳和燃烧筒组成。
The air distribution mechanism is composed of an air inlet pipe, a housing, and a burning cylinder.
配风机构是由进风管、外壳和燃烧筒组成。
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