The inspector asked the restaurant to replace the filter on the air extractor .

监察员要求餐馆更换排气扇的过滤网。

The utility model discloses a sowing barrel with an inner air extractor pulled by a bearing which is mounted on a gas pipe axle connected with an air pump.

本实用新型公开了一种内置气吸式播种滚筒，它由轴承带动转 动。

Air accumulation in the condenser owing to insufficient output of air extractor can increase the terminal temperature difference and the air pressure component.

抽气器出力不足而引起的空气在凝汽器内积聚，使得凝汽器端差和空气分压力均增大，对凝汽器真空造成双重影响。

The stabilization of condenser vacuum due to the collaboration of condenser and air extractor, the running status of air extractor is influential to condenser vacuum.

凝汽器内真空的稳定，需要凝汽器和抽气器的联合工作，抽气器的运行状态对凝汽器真空具有相当大的影响。

The technological scheme of the utility model: the device consists of three parts: a preheating pan of constant temperature oil, a vacuum electric frying pan and a vacuum air extractor.

本实用新型的技术方案：该设备由三个部分组成，恒温油预热锅、真空电炸锅、真空抽气机。