back bottom roller 后下罗拉
LZ series bottom roller bearings LZ系列下罗拉轴承
helical fluted bottom roller 倾斜沟槽下罗拉
Fluted bottom roller 沟槽下罗拉
bottom detaching roller 下分离罗拉
bottom padding roller 下底压吸罗拉
Fixed Belt or Roller conveyors can also be used as feeding or discharge devices at the bottom of the conveyor.
固定带和转动带也可以用于入货和卸货的装置。
The processed cruving and straight edge can be trimmed by the square roller from the top and bottom at the same time with fine, Evenness and precision.
用仿形滚轮可上下同时对所加工的曲直线进行修边，可均匀准确修整。
The main body has a front end, a tail end and a bottom with a roller.
鼠标主体具有一前端、一尾端及一底部，且在底部上具有滚轮。
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