In this paper, one practical method of UPS equipment ground wire is given through the theoretical calculation.

从工程实际出发，通过理论计算，给出了UPS设备接地的一种实际方法。

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Airborne technologies, such as different types of radar and photographic equipment carried by airplanes or spacecraft, allow archaeologists to learn about what lies beneath the ground without digging.

机载技术，例如飞机或宇宙飞船能携带的不同类型的雷达和照相设备，让考古学家无需挖掘就能了解地下的情况。

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Under the follow-on contract, Harris of Melbourne, Fla., will manage, maintain and repair the system’s ground equipment and software.

根据合同内容，哈里斯公司将管理、维护和维修系统地面装备与软件。

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The people offered lower amounts include some who have already received other compensation for their illnesses, including shares of a civil settlement for thousands of firefighters, police officers and construction workers who had sued over the lack of protective equipment at ground zero.

WSJ: 9/11 fund makes 1st payments to sick responders

Equipment works differently in the space environment than it does on the ground, so even equipment that is well tested for ground use will need testing for space use.

FORBES: Why Is Privatized Space Travel A Challenge?

Well, we have excellent equipment on the ground and our troops will tell you that.

CNN: Deadly month for British troops in Afghanistan