This is like building a building with a measuring rod that constantly changes.
这就好比建造一栋建筑，而测量杆却不停的在变动。
The measuring rod and the connecting plate are made of medical plastics.
测量杆和连接板是由医用塑料制成的。
Heavy duty measuring unit, twin wheel, stay rod mounted.
重型计量单位，双方向盘，住宿杆安装。
Heavy duty measuring unit, twin wheel, stay rod mounted.
重型计量单位，双方向盘，住宿杆安装。
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