它们只是一种商品，虽然在塑料外壳上印着各式的商标，但机箱内的部件基本都是相同的。
They are commodities: regardless of the brand emblazoned on the plastic shell, the innards are essentially the same.
提出了一种应用于电子机箱小环境散热的换热器结构，通过温度实验对该结构换热器的性能进行了分析。
A structural design of heat exchangers applied in microenvironment of electronic box was given and a performance research to it by a temperature experiment was introduced.
文章主要对密封机箱的几种不同结构形式进行仿真计算，并选取一种孔缝泄漏量少的结构形式作为军用舰载雷达的机箱形式。
In this paper, several structures of sealed case are introduced and calculated. By the data of calculator, the least leakiness of military case structure is selected.
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