The calculations agree well with experimental results, which indicates that the model is instructive on the optimization of the dimension of inertance tube in Stirling type pulse tube cooler. 3.
这
明该方法对斯特林型脉管制
机中惯性管尺寸的选取具有重要指导意义。
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Though devices for keeping food cold have been around for decades, Marshall's refrigeration machine got it's patent in 1899. 119 years later, refrigerators have touch screens and cameras connected to your phone that let you see what's inside.
虽然低温保存食物的装置已经存在
几十年
,但是Marshall's的

在1899年获得
专利。 119年后,冰箱有
触摸屏和摄像头,它可以连接到你的手
上,让你看到里面都有什
。
Internally, the tower features a 1.2-megawatt cogen system that contributes to heating and cooling requirements; while floor-to-ceiling windows and column-free floor plates maximise natural light, reducing the extent of artificial lighting needed during the day.
在内部,塔楼具有 1.2 兆瓦的热电系统,有助于满足供暖和
需求,而落地窗和无柱地板最大限度地利用自然光,减少白天所需的人工照明。
And finally, 200 Parties of the Montreal Protocol agreed to the Kigali Amendment that will gradually reduce the production and consumption of hydrofluorocarbons, powerful greenhouse gases that are commonly used in refrigeration.
最终,《蒙特利尔议定书》的200个缔约方达成
《基加利修正案》,该修正案将逐渐减少
中常用的具有强温室效应的氢氟碳化物的产生和消耗。