他这只脚摇摆着，试探着，踏上下面那个开口的边缘，再挪到旁边，踩上了这个位于中层的房间的地板。
He maneuvered his swinging foot until it found the lip of the lower hatch, then moved off onto the security of this middle room's floor.
德国电信，一家泰斗级的德国媒体企业，已经宣布到2015年，会有30%的中层和高层职位由女性来承担。
Deutsche Telekom, a German media behemoth, has declared that 30% of its middle and upper management jobs will be filled by women by 2015.
本文从机器视觉系统的组成结构出发，介绍了图像采集、图像传输、低层视觉、中层视觉到高层视觉处理的机制。
A typical machine vision system include: image collection system, transfer system, early vision system, mid-level vision system and high-level vision system.
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