单词：prestressed concrete beam
单词：prestressed concrete beam 相关文章
By Gary Garriott Broadcast: September 8, 2003 This is Robert Covent with the VOA Special English Development Report. Bridges are an important part of transportation systems. They make it possible to t
VOA2003（下）-发展与科学
杰克，你看起来气色不怎么好，怎么了？哎，自从我做兼职以来，我的课业我就跟不上了，惆怅。 A: Hi Jackie. You don't look too well. What's going on? B: It's nothing. I'm just a little stressed out. A: Why? What's
初级-Basic Listening
beam, [bi:m] n 大梁（建筑中用作支撑的木材、金属或石头）；光柱；臀围；平衡木 【船】横梁; 船幅; 船舷 (秤)杆; (犁)柄; (锄)把; 卷轴; 横杆; 杠杆 (鹿角的)主干 (灯光、日光、月光等的)束, 道,
不择手段背单词
DEVELOPMENT REPORT - Long-Life Concrete Bridges By Jill Moss Broadcast: Monday, June 07, 2004 This is Robert Cohen with the VOA Special English Development Report. Each year, road accidents kill a mil
农业与发展
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
英语每日一词
A: Hi Jackie. You don't look too well. What's going on? B: It's nothing. I'm just a little stressed out. A: Why? What's stressing you out? B: School. Since I was working part time, I had a difficult time keeping up with class. Now that we have exams
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