As illustrated in figure 2b, a suddenly stretched film has a lower protein concentration and hence a higher local surface tension.
如图2 b中所示，在突然拉伸的薄膜上，有一处蛋白质含量少而且局部表面张力大的地方。
2
It is thought that the concentration required to read distracts the mind, easing muscle tension and slowing the heart rate.
这是因为读书时需要投入的注意力转移了你的思维，放松了肌肉紧张并且放慢了心跳速率。
3
Most of the studies on withdrawal symptoms showed a significant reduction in 2 of 6 symptoms: stress, restlessness, irritability, anxiety, tension and poor concentration.