It is able to control both the direction and the height of the dam.
它既可控制坝体的方向，又能控制坝体的高程。
It can ensure the exposure at any height and direction and is easy to move.
这种支架能保证X线机从任意高度和角度拍摄，可方便地进行移动。
It can ensure the exposure at any height and direction and is easy to move.
这种支架能保证X线机从任意高度和角度拍摄，可方便地进行移动。
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