您要查找的是不是：
- Magma extravasated as pressure built under ground. 当地底下的压力生成时，岩浆喷发。
- Kate-Hard to believe we are in under ground,uar? 很难想像我们是在地底吧?
- Come in, there is a coffee bar under ground. 进来吧,地下有个咖啡厅。
- They stayed under ground for two days. 他们在地下呆了两天。
- Gold is mined from deep under ground. 黄金是在很深的地下采的。
- The coal miners laboured under ground in uncomfortable conditions. 那些煤矿工人在地下艰苦的条件下劳动。
- The changs of aerosol concentration and cosmic ray also affects the electric field in fair weather regions, the ground current density and the electric field. 气溶胶浓度和宇宙射线的变化也会影响到晴天区电场以及雷暴区地面电流密度和电场;
- The first layer is to prepare the site for concrete placed under ground to secure the structure. 第一层为现场混凝土置于地面保障体制。
- If construction will involve substaintial work under ground or work in other area which tenderers cannot inspect. 如果施工包括大量地下工程，或投标人不能检查的其他范围的工作。
- It points out that even very small ground current could also produce very high overvoltage, and in network of small ground current the singte phase arc earthing is principally expressed as high frequency arc suppressing. 指出:即使很小的接地电流也会产生很大的过电压,而且在小接地电流电网中单相弧光接地主要表现为高频熄弧。
- Abstract: Seism monitoring under ground has higher accuracy with less noise jamming from the ground surface. 中文摘要: 井下地震监测可减少地面噪声干扰、提高地震监测精度。
- The transmitter unit trasmits radio wave to under ground and metal objects collets this waves as a radio antenne. 变送器单位trasmits的无线电波下的地面和金属物体collets这波作为一个电台antenne 。
- This paper indroduces a telescopiform bolt in hole mouth and it under ground test. 介绍了一种孔口可拉伸锚杆及其现场试验情况。
- So they went under ground, and they started fraternal societies, they set up secret societies that were really secret. 这些秘密社会和中国文化的其他方面一样，在文化传统的诸多方面，与政治有联系。
- The man who has not anything to boast of but his illustrious ancestors is like a potato, --- the only good belonging to him is under ground. 比喻十分尖刻可喜。
- The fox went to ground under a rocky escarpment. 狐狸钻进了石崖下面的洞里。
- Type QJ submersible deep-well motor pumps are mainly used to lift under ground water , irrigation and industrial water supply. QJ深井潜水泵主要用于抽取地下水，农田灌溉，工业给排水。
- steel plate ground current testing apparatus 钢板地电流测量装置
- It has always been the bone of contention whether it is practicable to adopt shield tunnelling method under ground condition in Chengdu. 在此种特殊地质条件下的盾构法施工是否适用一直是大家争论的焦点。
- If a small potential difference exists between two ground points, some ground currents may flow through a sensitive part of the system. 如果在两个接地点存在一个小的电势差，在系统的敏感部分就会有接地电流通过。
