首先介绍了作者开发的可用于80 K及以下温区的高频脉冲管制冷机。
In the paper, the high frequency pulse tube coolers (PTCs) developed for 80 K and below temperature application are introduced.
系统设计用两级脉冲管制冷机预冷小型节流制冷机以获得液氦温区环境。
J - t loop is precooled by two - stage pulse tube cryocooler in order to obtain liquid helium temperature.
介绍了该厂房生产区、生活服务区及机械室的空调通风与制冷系统的设计及特点。
Presents the air conditioning and ventilating system design and its characteristics for the producing area, living quarter and mechanical room of the workshop.
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