U. S. Federal Railway Administration Research and Development Office developed a track surface and underground rock movement investigation system.
美国联邦铁路局研究开发办公室通过一项研究项目。开发出一种轨道表面及地下岩土移动勘测系统。
This 3-star hotel offers comfortable accommodation in Essen, a short stroll from the nearest U-Bahn (underground) station, which can bring you into the city centre in just 10 minutes.
这间位于Essen的三星级酒店为您提供舒适的住宿，几步之遥就可抵达最近的地铁(地下铁)站，车站距市中心只有十分钟的车程。
The influences of groundwater advection to heat transfer process and different soil property to the soil temperature field around the single U-tube underground heat exchanger were analyzed.
分析了土壤中水的渗流对传热过程的影响，并对考虑渗流作用时不同土壤物性对单根U型垂直埋管换热器周围土壤温度场进行了模拟计算与分析。
U. S. A. hits Iraq only for the underground drainage oil!
美国打伊拉克就是为了地沟油！
U. S. A. hits Iraq only for the underground drainage oil!
美国打伊拉克就是为了地沟油！
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