To add rigidity, braces are sometimes fastened from the overarm to the knee.
To add rigidity, braces are sometimes fastened from the overarm to the knee.
为了增加刚性，有时从悬臂到升降台装上一对撑臂加以紧固。
To add rigidity, braces are sometimes fastened from the overarm to the knee.
为了增加刚性，有时从悬臂到升降台装上一对撑臂加以紧固。