单词：refractions
[医] 折射, 屈光
n. the change in direction of a propagating wave (light or sound) when passing from one medium to another
单词：refractions 相关文章
The happiness of life is made up of minute fractions the little soon forgotten charities of a kiss, a smile, a kind look, a heartfelt compliment. 生活中的快乐是由一些小片断组成很快被遗忘的亲吻、微笑、关爱的眼神、由衷的
Daily English-2017.02
by Jason Marshall A few months ago we talked about how to multiply fractions. Now that were comfortable doing this and weve talked about a few applications of multiplying fractions such as how to convert units and how to estimate how fast someone is
数学英语
by Jason Marshall In the last article, Is Multiplication Repeated Addition? we talked about what it really means to multiply two numbers. We found that the conventional meaning of multiplicationrepeated additionbreaks down when multiplying fractions,
数学英语
by Jason Marshall In the last episode, we talked about exactly what decimal points and decimal numbers are, and why they are so convenient to use. In the next few weeks were going to continue talking about decimals and their place in the world of mat
数学英语
As part of the cooperation between China and the UK in education, more and more British primary school teachers and their Chinese counterparts have been conducting exchanges in a bid to learn from each other. A group of over 30 Chinese math teachers
2018CRI中国国际广播电台
This is Scientific American 60 second Science, I am Sophie Bushwick, got a minute? Stuck on a tricky math problem? Start clapping. Grade school kids who learned about fractions through a rhythm-and-music-based curriculum outperformed their peers in t
Scientific American(三)月
图片1 图片2 by Jason Marshall In the last article, we discovered that integers alone are not sufficient to fully describe the world around uswe need the fractions existing between the integers too. (In learning that, we also learned that fraction
数学英语
图片1 图片2 by Jason Marshall A few articles ago, I asked if you ever found yourself at restaurants fumbling to figure out how much to tip; I guessed that you might occasionally resort to seeking advice from your smart phone; and I told you that
数学英语
by Jason Marshall Todays article is about decimal points and numbers and how theyre related to fractions. But first, the podcast edition of this tip was sponsored by Go To Meeting. Save time and money by hosting your meetings online. Visit GoToMeetin
数学英语
图片1 图片2 by Jason Marshall Do you frequently find yourself at restaurants with friends fumbling to figure out how to split the bill and calculate the tip? Have you ever resorted to seeking advice from your smart phone? Dont worry, we all have.
数学英语
Which is correct: A dozen eggs is? Or A dozen eggs are? 哪个是正确的：a dozen eggs 'is' 还是 a dozen eggs 'are'？ I remember being in elementary school, and my teachers making a big deal about the unit. 我记得上小学的时候，我们老
TED演讲教育篇
Back in 2003, the UK government carried out a survey. 早在2003年，英国政府进行了一项调查。 And it was a survey that measured levels of numeracy in the population. 目的是了解国民的算术能力。 And they were shocked to find o
TED演讲科学篇