It possesses vacuum air bleeding and vacuum oil adding function.
具有对电力设备真空抽气和真空注油功能。
Make sure to check the pipe connections and whether or not any hydraulic circuit parts are damaged before performing work, as the hydraulic circuits become highly pressurized during air bleeding.
在执行工作之前，确保检测管道连接以及是否液路中是否有零件的损坏，因为液路在充压过程中将会有高压产生。
The end result: windows that keep heat out in summer and heat in during the cold months, and radiators that pump heat to the building's interior without bleeding so much of it into the outside air.
那么这样的结果是：在夏天窗户可以把热量档在外面，而在寒冷的月份则把热量保留在里面。 散热器可以把热量注入大厦内部而不需要那么多外部空气。
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