Conclusions So that this paper concludes that co-contraction contributes to impedance control even during free upper limb planar movement.

结论即使在手臂平面自由运动中，肌肉共同收缩对阻抗也有贡献。

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An electrical wave traverses the heart each time it beats, co-ordinating the contraction and relaxation of the chambers that pump blood around the body.

随着心室的收缩和舒张将血汞到了全身，心脏跳动一次，电波横穿心脏一次。

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Ilex Fubescens co, can also significantly reduce the heart rate and lower the amplitude of cardiac contraction of the isolated toad hearts.

通过离体的蟾蜍心脏，观察到复方毛冬青有降低心肌收缩幅度及减慢心率的作用。

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However, some economists consider this growth forecast optimistic, and the Organisation for Economic Co-operation and Development on Tuesday predicted a 1.8% contraction.

BBC: Portugal passes another austerity budget