retractor

基本解释

A tubular retractor system is subsequently deployed after tissue dilation is performed.
在软组织充分扩张后安放管状牵开器系统。
The author describes a new anterior cervical retractor that is based on a novel principle.
作者介绍了一种基于崭新理念的新型颈椎前路牵开器。
Some think it's a high-tech vehicle code distortion field or custom-built mechanized plate retractor. Others insist that overzealous fans swipe the roadster's tags every time they're mounted.
有人认为那是一个高科技变形车牌或者是经过特制的，其他人坚持说是狂热的苹果粉丝每次碰到帮主的座驾都将车牌撬走了。