Contraction of front and side parts as cells die off was observed in some subjects in their thirties, but it was still not evident in some sixty and seventy-year-olds.
随着细胞的死亡，有些人大脑前部和侧部的收缩，在三十多岁时就能观察到，但是也有些人直到六七十岁依然不明显。
On this base, the formula used for calculating the side pressure of ring wall, ring tensile and temperature contraction stress is established for engineering design.
在上述基础上提出的环墙侧压力、环拉力和温度收缩应力的计算公式，可供工程设计中采用。
Shift your weight laterally, all the way to the other side, without lowering your body and hold an equal contraction.
然后再将重心侧向转移到另外一边，身体不能下降，保持肌肉收缩同样的时间。
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