双曲柱面坐标

12-1 心连心

Heart to Heart Li Feiyan: For most of the readers of English Salon , Heart to Heart International is still an unfamiliar name. Could you introduce the nature and guiding principle of your organization

发表于:2018-12-05 / 阅读(140) / 评论(0)

英语沙龙2004全年合辑下

数学英语 29 What are 1D, 2D, and 3D Coordinates?

by Jason Marshall Theres been a lot of talk about 2D versus 3D in the television and movie industries lately. But what exactly does one, two, and three-dimensionality really meanboth in the everyday world and in math? Well, prepare to have your curio

发表于:2018-12-07 / 阅读(39) / 评论(0)

数学英语

麻省理工学院公开课：单变量微积分06：指数与对数函数导数、对数微分法

分集介绍：指数,log,对数微分;双曲函数 Exponential.and.log.Logarithmic.differentiation;.hyperbolic.functions

发表于:2019-01-05 / 阅读(335) / 评论(0)

麻省理工学院公开课：单变量微积分

VOA标准英语2012--New Texas Institute Coordinates Space Medicine Research

New Texas Institute Coordinates Space Medicine Research Since the human space flight adventure began more than 50 years ago, scientists have learned a lot about things like the effects of weightlessness on bones and muscles, and the danger of increas

发表于:2019-01-13 / 阅读(60) / 评论(0)

VOA标准英语2012年(四月)

编织的6个好处

Learning how to knit might not be at the top of your fall to-do list, but it should be. Not just for your grandmother anymore, knitting has a wide variety of benefits beyond having something comfy to wear/snuggle/give away at the end of the process. 学

发表于:2019-02-01 / 阅读(69) / 评论(0)

实用英语

中国将完成减排目标

The report, titled China's Response to Climate Change Policy and Action in 2015 is an assessment of the steps that have been taken to both reduce emissions and clean up the air in the country. Among the achievements laid-out in the analysis, the gove

发表于:2019-02-19 / 阅读(44) / 评论(0)

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