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- under ground economy 地下经济
- 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 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。
- 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 fox went to ground under a rocky escarpment. 狐狸钻进了石崖下面的洞里。
- 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。
- 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。
- 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。
- She and I can't live under the same roof. 她和我不能住在一起。
- The enemy army crumpled up under our attacks. 敌军在我军的攻击下垮了。
- The firm will go under unless business improves. 生意若无起色，公司非垮不可。
