单词:physical and mechanical properties of soil and rock
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Broadcast: August 4, 2003 This is Bill White with the VOA Special English Development Report. Safe drinking water has always been rare and valuable. Throughout the world, drinking water has to be stor
EXPLORATIONS - Mars Exploration, Part 2 By Paul Thompson Broadcast: Wednesday, February 04, 2004 (THEME) VOICE ONE: This is Shirley Griffith. VOICE TWO: An artists picture of a Mars Rover vehicle. And
The rock called sandstone is made up of a great many grains of sand. The beating of the rain on this rock washes the grains apart, and so the hard sandstone slowly changes into loose sand. 砂岩主要由大量沙粒组成。当雨水打下来的时候
Scientists Analyze Modern Tennis Technique of Sliding 科学家分析现代网球技术中的滑动 Sliding to return a shot is a common tennis practice on clay courts, but lately players have started using it on grass and hard courts as well. Scient
A potential host for Wandas backdoor listing in China has pulled out of talks, causing a headache for Wang Jianlin, Chinas richest man, as he seeks to replace a poorly performing Hong Kong listing with the higher valuations offered in Shanghai and Sh
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