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1·Critical resolved shear stress (o 'crss).

临界分剪切应力。

2·In the beginning when the airlines created travel distribution, the GDSs (they were called CRSs then) controlled the distribution of travel content.

最初当航空公司开创了旅游分销时，GDS(当时被称为CRS)控制着旅行内容的分销。