Designing seat position in cab and satisfying man-machine interaction aimed at driver and sitting posture re quire-ment are prerequisites of seat design.
设计座椅的位置，满足以驾驶员为中心的人机关系和坐姿要求是座椅设计的前提。
This is known as cultural displace- ment and this happens when the power of testosterone is ignored or attacked, so it re-emerges in cruder, less social forms .
当睾酮的力量被忽略或受到抨击时，就会发生这种现象，而且它会以更粗野和不太友善的形式重现。
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