PET scanner also consists of a moving couch that slowly moves a person through a short tunnel.
PET扫描诊断设备也包括可以移动的检测床，它可以慢慢地将人移入一段短短的隧道。
For lack of relevant studies on domestic short tunnel lighting, this paper studies and discusses the design parameters of short tunnel lighting.
国内短隧道照明缺乏相关研究，故文中对短隧道照明设计参数进行探讨。
Unite arch tunnel has its own characteristics which include short tunnel, fleet bury depth and bad surrounding rocks arouses landslide easily in construction.
联拱隧道有其自身特点，由于隧道短，埋深浅、围岩差，施工中容易引起塌方。
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