这一管理层调整反映出了丰田汽车内部的危机感，这家公司正面临着70年历史上最为艰难的时期。
The shakeup reflects the sense of crisis within Toyota as it navigates one of the toughest periods in its 70-year history.
最后，第三层次，显现的是，不同生产形式之间的冲突，不同的生产方式在历史上不断地发生冲突。
Finally, at the third level what comes out, what is made manifest is the tension or clash among modes of production as they jostle each other historically.
因为其地幔的未知混合物，火星形成历史上还有诸多不确定因素。地幔是一个位于地壳下面的岩石层。道法斯说道。
There have been large uncertainties in the formation history of Mars because of the unknown composition of its mantle, the rock layer that underlies the crust. Dauphas said.
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