单词:volume method of concrete mix design
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Voice 1 Welcome to Spotlight. Im Liz Waid. Voice 2 And Bruce Gulland. Spotlight uses a special English method of broadcasting. It is easier for people to understand no matter where in the world they live. Voice 1 A building stands against a bright bl
67 专家就防御恐怖袭击摩天大厦展开研究 SCIENCE REPORT- September 27, 2001: Planning for Safer BuildingsBy Nancy Steinbach (start at 1'00
今天我们要学的词是concrete。 Concrete具体的,实质性的。美中战略与经济对话星期二结束。美联社报道说,The United States and China ended two days of high-level talks with few concrete results, 美中结束了为期两
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Yesterday morning a crowd in Christchurch watched from a safe distance as a 14 storey building was demolished in just 10 seconds by implosion. It fell sideways a little then collapsed into a heap of rubble, with a large cloud of dust. A 6-year old bo
The Royal Commission on the Canterbury Earthquakes has been trying to find out why some buildings collapsed on February 22nd 2011. Their report last week was about the CTV building, which killed 115 people when it collapsed and fire broke out. After