单词：nozzleless solid rocket motor
单词：nozzleless solid rocket motor 相关文章
外部设施 information desk 服务台 hotel register book 旅客登记簿 registration form 登记表 newsstand 售报处 postal service 邮局服务处 shop 小卖部 bar 酒吧间 lounge 酒店大厅 billiard-room 台球房 dining-room, dining ha
英文语法词汇
You pump it at a high pressure through a nozzle. You create a spray of detergent. 你用高压将它压过一个喷嘴，你制造了清洁剂喷雾。 Then the spray dries. It turns into powder. It falls to the floor. 喷雾干燥后就成了粉末，
TED演讲教育篇
The land-speed record 地面速度记录 How to build a 1,000mph car 怎样建造时速1000英里的汽车 Hybrid rocketry will be used to drive faster than ever before 混合火箭技术将用于更快地驱动车辆 May 5th 2011 | from the print ed
经济学人综合
BEIJING, Sept. 6 (Xinhuanet) -- Scientists from Tufts University of the U.S. have created the world's smallest electrical motor in a single molecule. The finding was published in the journal Nature Nanotechnology on Monday. In the research, scientist
英语新闻
The first rockets were Chinese. In the 1230s the armies of the Song dynasty, 首批火箭出现在中国。十三世纪三十年代，宋朝军队 who were fighting Mongol invaders, started launching fire arrows propelled by gunpowder some 300 metres
经济学人科技系列
Presenter/producer: Jean Dong Jo: This is Real English from BBC Learning English. Im Jo. Jean: And Im Jean. Jo: Today were going to look at words and phrases that you might not find in your English text book. Jean: 学习英式英语非常重要的一部分就是要
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