blow and vent system 通气系统
The port side is the vent valve and tubing, and the starboard side is the blow tube.
港口方面是发泄阀和油管，和右舷侧是打击管。
Avoid touching chickens or their faeces when buying live chickens. Do not blow their vent.
选购活鸡时，不要接触鸡只或牠们的粪便，或用口吹鸡只的尾部。
Argon-blown pocket block is a supportive new and hi-tech product developed simultaneously with bottom-blow argon vent brick.
吹氩座砖是与底吹氩透气砖同步开发的配套高新技术产品。
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