A data carrier mounted and demounted as a unit, for example, a reel of magnetic tape, a disk pack.
可作为一个部件安装和卸下的存储数据的介质，例如，一个磁带卷，一个磁盘组。
Reel-stand: The unit housing a reel of paper at the feed end of a web press.
卷筒纸架：在卷筒纸机的给纸部份，放置纸卷的单位。
The reel functions are hydraulically powered and controlled from the unit control cabin.
从控制室可液压带动和控制卷筒。
The reel is one of the important part of the coiled tubing unit, its use to wrap the coiled tubing uniformly, and make the coiled tubing string in and out of the reel smoothly.
油管滚筒是其重要的组成部分，用以均匀地缠绕连续油管，使连续油管柱能顺利进出滚筒。
The reel is one of the important part of the coiled tubing unit, its use to wrap the coiled tubing uniformly, and make the coiled tubing string in and out of the reel smoothly.
油管滚筒是其重要的组成部分，用以均匀地缠绕连续油管，使连续油管柱能顺利进出滚筒。
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