The arm and shoulder rotation stretch warms up the muscle that surrounds the shoulder jointed the body. These muscles are used continuously during swimming.
手臂和肩膀的旋转伸展动作帮助肩部及其联接躯干的肌肉群充分热身。游泳时将连续不停的运用这些肌肉。
At most, body rotation is in the vicinity of 45 degrees to either side and the length of stretch forward is determined by the amount of time available to execute the stretch.
至多，身体转动是在每一侧的45度时，而向前伸展的长度则是由伸展完成的时间所定。
Finally, through the approximate analysis, the approximate representation on the rotation tensor and stretch tensor is proposed.
最后通过近似分析，给出了在小变形中等转动情况下转动张量和伸长张量的近似表示。
It selected corners as features, removed influence of image stretch, skew, rotation, and translation by calculating affine invariant, so matching accuracy and speed were improved.
该算法使用角作为图像匹配选取的特征，通过仿射不变处理，消除图像缩放、扭曲、旋转和平移等变化产生的影响，提高了特征匹配的精度和正确匹配率。
It selected corners as features, removed influence of image stretch, skew, rotation, and translation by calculating affine invariant, so matching accuracy and speed were improved.
该算法使用角作为图像匹配选取的特征，通过仿射不变处理，消除图像缩放、扭曲、旋转和平移等变化产生的影响，提高了特征匹配的精度和正确匹配率。
应用推荐