river valleys

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1.
Dr Hynek said: 'The abundance of these river valleys required a significant amount of precipitation. '
海尼克博士说：“如此大量河流峡谷的形成需要极为充沛的雨量”。
megust.publicvm.com
2.
"No one expected Venus to be the poisonous hell that it is, or Mars to have the river valleys that it does, " he said.
“在我们进行宇宙探索之前，没有人能够预料到，金星是那样一个充满毒气的地狱，而火星表面却有河谷。”他说。
megust.publicvm.com
3.
The discovery is based on a detailed study of the dried-up river deltas and thousands of river valleys that scatter the Martian surface.
这一发现是基于对遍布火星表面的干涸的三角洲和成千上万的河流峡谷的详细研究。
megust.publicvm.com
4.
In the south, the Shiwalik Hills are covered with dense forests, lowland river valleys, and mountains up to around 1, 500 m above sea level.
南部的Shiwalik山区有茂密的森林、低地的河谷，每座山的海拔都在1500米之上。
www.ebigear.com
5.
As heavy rain continues pounding the river valleys, the water level is still rising.
随着强降雨持续涌入河谷，四川地区河流水位仍在上升。
edu.sina.com.cn
6.
Programs for comprehensive management of the Tarim and Heihe river valleys were launched.
塔里木河和黑河经综合治理，挽救了濒临崩溃的下游生态环境。
tr.bab.la
7.
Pollution prevention and treatment should be intensified in key river valleys and key land and sea areas.
加强重点流域、区域、海域污染防治和城市环境综合整治。
www.dictall.com
8.
National standards would have stricter limits for discharge of pollutants in key river valleys.
提高重点流域水污染物的国家排放标准。
www.en84.com
9.
The runners cover long distances on foot across isolated river valleys and snow-covered mountain passes.
邮递员经常徒步长途穿越与世隔绝的河谷和大雪覆盖的山路。
www.examda.com
10.
The geomorphology of river valleys in the Gyaca region has controlled by tectonic movement and climate.
该段河谷地貌的形成演化受构造运动和气候等影响。
www.cagsbulletin.com