1)Tiankeng天坑
1.Characteristics and Evaluation of Karst Landscape in Tiankeng-Difeng Scenery Site, Fengjie, Chongqing;重庆市奉节天坑地缝岩溶景观特征及评价
2.Research on Formational and Evolutional Processes of Xingwen's Erosive Karst Tiankeng兴文侵蚀型天坑的形成演化过程研究
3.Tiankengs are formed most commonly by the collapse of bedrock into underlying caves that contain active rivers.大部分情况下,天坑都是现代暗河通道洞顶塌陷而成。
英文短句/例句
1.Species Diversity of Karst Tiankeng Forest in Dashiwei Tiankengs，Guangxi;广西大石围天坑群天坑森林物种多样性研究
2.Analysis on formation conditions of Xiaozhai "Tiankeng" in Fengjie,Chongqing City重庆奉节小寨“天坑”形成条件分析
3.Research on Formational and Evolutional Processes of Xingwen's Erosive Karst Tiankeng兴文侵蚀型天坑的形成演化过程研究
4.Research on Tourism Integrated Development ofKarst Tiankeng under the Viewpoint of Organizational Ecology--A Case Study of Dashiwei Tiankeng Group of Leye;组织生态学视角下的岩溶天坑旅游整合开发研究——以乐业大石围天坑群为例
5.Ginkgo village "Tiankeng" after the incident, the villagers reported immediately to the township government.白果村“天坑”事件发生后，村民们立即上报乡政府。
6.Studies on the Eco-tourism Development of Dashiwei Karst Tiankeng(dolines) Groups in Leye County of Guangxi;广西乐业大石围岩溶天坑群生态旅游开发研究
7.Resource Exploitation and Protection of Leye Tiankeng Characteristic Tourism;广西乐业天坑特色旅游资源开发与?；?br> 8.RESEARCH ON TOURIST BRAND SYSTEM OF DASHIWEI SKY-PIT GROUPS IN BAISE GUANGXI;对创立百色大石围天坑群旅游品牌的探讨
9.They are digging their own graves, and they have no right to blame fate or other people.自家掘坑自家埋, 怨天尤人全是错误的。
10.there are pits dotted around the brick kiln, water collects in them after rain.窑场附近都是窑坑,雨天容易积水。
11.A natural or artificial hole or cavity in the ground.坑，洞一个地上天然的或人工的洞或穴
12.It was so dark Jack fell head over heels into a big hole in the ground天太黑，杰克倒栽葱地摔进一个大坑里。
13.Open pit iron ore 35kV power supply substation露天铁矿35kV坑内变电站供电初探
14.It is about7000 million years old measured by isotope geological method.假如该坑与上述三个陨石坑是同一系列的外来天体撞击地球事件。
15.I like rainy weather because I can jump in puddles.我喜欢雨天，因为我可以在水坑中跳来跳去。
16.He hurled the umbrella wrathfully into an excavation.他怒气冲天地把绸伞猛地掷进一个坑里。
17.Technology to apply open mining pit to treat mine industrial waste water利用露天采坑处理矿井工业废水的技术
18.A Study of Several Qustion in Deep Foundation Ditch Excavation for Hua-yuan Station of Tianjin Subway;天津地铁华苑车站深基坑若干问题分析与研究
相关短句/例句
open-pit[英]['?up?n'pit][美]['op?n'p?t]露天坑
3)Karst Tiankeng岩溶天坑
1.Research on Tourism Integrated Development ofKarst Tiankeng under the Viewpoint of Organizational Ecology——A Case Study of Dashiwei Tiankeng Group of Leye;组织生态学视角下的岩溶天坑旅游整合开发研究——以乐业大石围天坑群为例
4)Leye Tiankeng乐业天坑
1.Resource Exploitation and Protection of Leye Tiankeng Characteristic Tourism;广西乐业天坑特色旅游资源开发与?；?br> 5)open pit bottom露天坑底
1.After the finish of open pit mining in Cangshang mining area of Sanshandao gold mine,little segment caving mining method without sill pillar is carried out to make use of the low-grade medium-thick cracking gold orebody in the open pit bottom.针对三山岛金矿新立分矿仓上矿区中厚破碎金矿体露采结束后,露天坑底低品位中厚破碎金矿体,介绍了小分段无底柱崩落采矿法回采实践。
6)Karst Tiankeng Forest天坑森林
1.Species Diversity of Karst Tiankeng Forest in Dashiwei Tiankengs，Guangxi;广西大石围天坑群天坑森林物种多样性研究
延伸阅读
天坑2002年,在重庆市奉节县境内，靠近长江三峡的荆竹小寨村,发现了世界上最大的天坑——小寨天坑。它的四周必须是石壁，具有直上直下的坡度和一定的深度,通俗一点儿讲，就是地上天然形成的大漏斗，小寨天坑是世界上迄今为止发现的最大的“漏斗”，被誉为“天下第一坑”。天坑一般都出现在峰丛喀斯特地貌，且地面河流切割很深的地区。天坑的形成分三个阶段：先是有底下河流；如果地质条件有利，由于水的长期冲蚀，就会形成地下大厅；地下大厅垮塌后就形成了天坑。天坑的形成至少要同时具备六个条件：一是石灰岩层要厚。只有足够厚的岩层才能给天坑的形成提供足够的空间。二是地下河的水位要很深。三是包气带（含气体的岩层）的厚度要大。四是降雨量要大，这样地下河的流量和动力才足够大，足以将塌落下来的石头冲走。五是岩层要平。从天坑四周的绝壁看就会发现，岩层与地面是平行的，就像一层层的石板堆在四周一样，只有这样的岩层才能垮塌。六是地壳要抬升。地壳的运动就会给岩层的垮塌提供动力。中外科学家多次去小寨天坑开展探险活动，已探测洞穴近100个，探明地下暗河100余公里，植物种类2000多种，发现了拱桐、桫椤、红豆杉等珍贵植物和大鲵、玻璃鱼、林麝等近20多种珍惜动物。他们认为，天坑地缝不仅是构成地球演化史的重要例证，更是探寻长江三峡成因的“活化石”。
