Two types of portal cranes: truss type and cylinder type, are available.

分为桁架式和圆筒式两种门架型式。

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Die-cutting roller cylinder type auto separation unit can increase wear of rubber sleeve.

模切辊采用汽缸自动分离装置，减少胶垫磨损。

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The kind of changing freedom one-way drive device-swing cylinder type overpass clutch is proposed in this paper.

本文提出一种变自由度单向传动装置-摆动滚柱式超越离合器。

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The government may simply insist that 3D printer manufacturers install software that prevents printing of a hollow cylinder of a certain size, a firing pin, or a certain type of spring.

FORBES: Five Reasons Gunmakers Have Nothing To Fear From 3D Printed Guns