Right arm likelycontinuing recovery, left arm begins to press down (likely through glenohumeral(shoulder) internal rotation) as the wrist appears to flex slightly more.
第十三帧：当左手腕似乎更加弯曲的时候，右臂继续恢复，左臂开始下压（貌似是通过肩部的内转动）。
2
The opposite rotation direction implies the existence of left lateral dislocation between Qaidam basin and Jiuquan and Subei areas.
柴达木盆地和酒泉、肃北旋转方向的差异预示了两地区间存在左旋错动。
3
METHODS. : Active cervical flexion, extension, right and left lateral flexion and rotation were measured in 100 healthy volunteers.