The transient temperature of the display case shelves was measured for studying the temperature variation and distribution in the display case by changing the number and the velocity of air curtain.
通过改变风幕的层数和各层风幕的送风速度，实验测试陈列柜运行期间柜内各层搁架上的瞬态温度值，来研究低温陈列柜内温度的变化和分布情况。
As to the open vertical display case with outer and inner air curtains, the temperature distribution of the air curtain is experimented.
实验研究立式开式陈列柜风幕送风速度对其温度分布的影响。
Hot air curtain is strong airflow generated by the rotation of the fan rotor, curtain like flow out a certain velocity and temperature, forming a invisible curtain.
热风幕是通过风轮的转动产生的强大气流，送出一定速度和温度的幕状气流，形成一面无形的门帘。
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