菲律宾的公主港地下河国家公园的主洞入口处，停靠着几只空空的桨船，在等待桨手的到来。
Empty paddle boats await rowers at the main cave entrance at Puerto Princesa Subterranean River National Park in the Philippines.
地下河的湿气使周围墙壁也很潮湿。
有一条地下河流经这个区域。
地下河水温度随海拔升高而逐渐降低。
The groundwater temperature gradually decreases with the increase of elevations.
地表河与地下河相连接构成长江主河道。
The main watercourse of Yangtze was made of some surface river sectors and underground rivers.
水怎么去哪里的地下河？
据说，湖水的神秘源头是还未确定明确方位的地下河。
The mysterious source of the lake is believed to be an underground river that has yet to be located.
岩溶洞穴地下河和岩溶大泉亦是具有重要价值的旅游资源。
Karst caves, subterranean streams and karst springs also are other important valuable kinds of tourism resources.
本文利用以上所述技术实现了重庆市地下河资源的网络发布。
This paper realized the web publication of Chongqing underground river resources using the technologies mentioned above.
该洞发育起于第四纪更新世早期或中期，属流入型地下河溶洞。
Haizi cave originated in the early or middle stage, Pleistocenc, Quaternary, and is a kind of afflux underground river cave.
埃克继续猜测道：“也或许是因为地下河后来改道这里也未可知！”
"Ike continued speculation and said:" Perhaps it is because the river was diverted underground unknown here!
因为岩石大多是石灰岩，所以贵州有许多地下河，甚至巨大的地下湖。
Because the rock structure is largely limestone, there are many underground rivers and even vast underground lakes in Guizhou.
前往地下河入口的途中，我快速的休整了一下，拥抱了环绕我的冷冷的空气和雾气。
Moving to the entrance of the underground river, I took a quick break and embraced the cold air and mists encircling me.
这是一种成熟的爱：它像一条浩大的地下河流贯穿于既定的亲情关系中。
This is a mature love that runs through an established relation ship like a mighty underground river.
后来由于干燥沙漠的侵袭，罟尤河完全变成了一条地下河，消失在沙漠里。
Later, the invasion of the dry desert, Kwu Particular river have turned into an underground river and disappeared in the desert.
冠岩是一个巨型地下河岩洞，全长12多公里，发源于桂林东面的海洋山。
Guan Yan is a giant underground river cave, a total length of 12 km, originated from the ocean to the east of the mountain Guilin.
土地资源的不同利用常常造成地下河的农药、化肥和细菌污染，引发雨后旱情。
So, unfit usage of land resources often causes the pollution of underground river by pesticides, fertilizers and bacteria and prevalence of dry hazard after rain season.
这个石灰岩地质的国家地下河流蜿蜒流淌，地表茂密的森林形成这些巨大的灰岩坑。
This limestone country is laced with underground rivers and when the jungle roof caves in, it creates these enormous sinkholes.
怀托摩鲁米·诺萨探险公司会带领你在黑暗中乘坐橡皮艇，穿过地下河那踹急的水流。
Adventure company Waitomo Luminosa leads groups through the underground rivers riding dark rapids1 on inner tyres.
在巴西亚马逊地区地下流动的地下河不是传统意义上的河流，即使它的存在已经被证实。
A subterranean river said to be flowing beneath the Amazon region of Brazil is not a river in the conventional sense, even if its existence is confirmed.
它们不至于浑浊、只是在灰岩地区和火山地区具有高的次生渗透性并存在大地下河时除外。
They are free of turbidity, except in some limestone areas and volcanic areas with high secondary permeability where large underground rivers occur.
Hutchinson说，它可以通过连接地水准面的最低点来推测出地下河流系统的位置。
It infers the location of the underground river system by joining the lowest points from ground-level elevation measurements, Hutchinson said.
以贵州省平塘县巨木地下河开发示范为例强调岩溶地下水开发在解决农村饮水安全工作中地位。
Taking the Qumu underground river in Pingtang county, Guizhou Province as the example, it emphasizes the significance of karst groundwater exploitation in the drinking water of the country.
地下河系统之间水位差异变化大，一般没有统一区域地下水位，难以区分补给资源、储存资源。
The water table discrepancies between sub-streams vary quickly, and there is no uniform groundwater head for an area.
然而会有很多水位首先会充盈地下河道，然后才影响海洋，而这也可以为那些干旱荒地提供淡水。
Many water tables will fill underground before they affect the oceans however and this also could provide fresh water in regions that are barren otherwise.
长期以来，地下水开发利用多以钻井开采为主，通过堵截地下河成库的方式开发利用是一种全新的思维。
Groundwater exploitation has mainly been with drilling for a long time, the paper introduced a new idea of reservoir formed by subterranean stream blocking.
采用湖南洛塔地区屋檐洞地下河系统降水—径流资料训练BP人工神经网络，建立了该系统的径流预测模型。
This paper presents a forecasting model of runoff to Wuyandong subterranean stream system by BP ANN based on the data of precipitation and flux in Luota, west Hunan.
采用湖南洛塔地区屋檐洞地下河系统降水—径流资料训练BP人工神经网络，建立了该系统的径流预测模型。
This paper presents a forecasting model of runoff to Wuyandong subterranean stream system by BP ANN based on the data of precipitation and flux in Luota, west Hunan.
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