Table tennis rack 乒乓网架
There is a low table in the corner of the room which can serve for a TV rack.
在屋子的角落里有一张矮桌子当电视架使用。
We have a newspaper rack over there and a number of magazines on this table.
我们那里有报架,这桌上有许多杂志。
If the rack is fixed and the pinion is carried in Bearings on a table guided on tracks parallel to the rack, rotation of the pinion shaft will move the table parallel to the rack.
如果齿条固定,小齿轮装在工作台的轴承上,而工作台所在的导轨与齿条平行,那么小齿轮的轴转动时,就会带动工作台平行齿条而移动。
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