同任何公路系统一样，联邦航空线路也有其主航线。
Like any highway system, the federal airways have their main trunk line.
结果表明，导航线路的主效应达到显著的水平，而认知风格的主效应和两者的交互作用没有显著性。
It was found that the main effect of navigation route was significant statistically, and that the main effects of cognitive styles and interaction e...
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