单词：speed control system
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by Jason Marshall The last article about how to use math to send encrypted messages ended with a bit of a cliffhanger. The good news is that you will soon find out how the story ends. But, as I warned last time, the bad news is that that isnt going t
数学英语
Cassegrain Antenna - An antenna that places a subreflector at the focal point to reflect energy to or from a feed located at the apex of the main reflector. CB - This stands for Citizen's Band and is
电信英语
中文 英文 缩写 顶侧板 top-side door 顶盖 top cover 顶面板 top panel 定长方式 fixed-length mode 定长码 fixed-length code 定界符 delimiter 定力矩扳手 torque wrench 定时 ti
电信英语
Beijing International Airport has started test flights on three new runways . The runways are expected to greatly enhance the airport's passenger capacity as visitor numbers continue to grow rapidly. Three large Air China planes took to the skies at
英语新闻视频
丰富生活 Travel 旅行 Most of you want to travel the world, see new things, and meet new people. 大多数人渴望周游世界，接触新事物，结交新朋友。 But statistics show that the average mother in the U.S. will start a family at
英语听力广播—Listening
New research suggests that the number of children a woman could affect the rate at which her body ages, with more children leading to a slower rate of biological aging. 新的一项研究表明，女性生育孩子的数量可能会影响身体衰老的
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