That way you can truly select one at random and not waste all your time trying to decide which one to explore.
这样，你才能真正随机选择其中之一，而不是浪费所有的时间决定去探索哪一个。
In rotation tools set of CNC, to select tool by PLC software can realize tool exchange at random and high speed.
对数控机床中的旋转刀库，采用PLC软件选刀，可实现随机快速换刀。
Methods: we select each technician's X-ray film works at random, shielding the date, the number and other signals that help to identify, then assess collectively.
方法：抽取每位投照技师一定数量照片，遮盖投照日期、X线号等可辨认标志，集体阅片对每张胶片图像质量进行评比打分。
Methods: we select each technician's X-ray film works at random, shielding the date, the number and other signals that help to identify, then assess collectively.
方法：抽取每位投照技师一定数量照片，遮盖投照日期、X线号等可辨认标志，集体阅片对每张胶片图像质量进行评比打分。
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