... 实物校验装置 object calibration device 起吊孔 lifting hole 气力拱破系统 pneumatic coal arch breaking system ...
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The bottom of screen board is set with hole core, lifting hole and positioning hook. The hole core and screens board can form a whole.
下部设有孔芯，吊耳、定位钩、孔芯均与卡位板铸成一个整体。
The utility model is a novel bedpan lifting device applied to the ward bed with a defecation hole.
本实用新型是一种应用在带有方便孔的病床上的便盆升降装置。
The utility model relates to a bedpan lifting device which is applied to a hospital bed with a relief hole.
本实用新型是一种应用在带有方便孔的病床上的便盆升降装置。
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