A formula used to determine the upper cut off Rc of the fractal structure of the Universe is given by analysis of different apparent magnitude limited catalogues.
本文给出了用几种达到不同极限星等的星系表确定宇宙分形结构上限截止尺度的公式。
Landslides, power failures and fallen mobile phone towers left much of the affected area cut off from the outside world and limited information about the damage.
房屋坍塌、电力中断和通信塔的倒塌切断了受灾区域与外界的联系，关于毁损情况没有太多的消息。
In the past, the supporting of open-off cut used to be log shed. Since the space is limited, the facilities fixing efficiency and safety are influenced greatly.
以往开切眼的支护一般为木棚，使开切眼的空间狭小，对于安装设备的效率和安全有很大影响。
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