Also the research object has pointed, it including removes the acupuncture needle the spacing survey, the staircase arm rest Angle survey and so on.

且研究的对象有针对性，其包括排针间距的测量，楼梯扶手角度的测量等。

youdao

Also the research object has pointed, it including removes the acupuncture needle the spacing survey, the staircase arm rest Angle survey and so on.

且研究的对象有针对性，其包括排针间距的测量，楼梯扶手角度的测量等。

youdao