有效长度系数对于这种连接的设计起关键作用。
The effective length factor for the compression design of the cleat is considered.
增量长度绕射系数理论（ILDC）是对电大尺寸复杂目标进行边缘绕射计算的有效方法之一。
The theory of Incremental length diffraction coefficients (ILDC) is one of the efficient methods to calculate the edge diffraction of electrically large scaled complex objects.
相反，在需要传热系数较小场合以选用高度大、翅片厚度小、有效长度长、间距大的翅片为宜。
On the contrary, the fin that is bigger high, longer louver length and space and lower thickness should be chosen when a small coefficient of heat - transfer is needed.
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