单词：amplification of powerful signal
单词：amplification of powerful signal 相关文章
Hey Greenhorn! 嘿生手 Now, the VOA Special English program Words and Their Stories. Green is an important color in nature. It is the color of grass and the leaves on trees. It is also the color of most growing plants. Sometimes, the word green mea
2013年VOA慢速英语(十)月
In my lab, we recently made a cancer nanodetector 在我的实验室，我们最近研制出了一种癌症纳米检测器， that is so small that it could travel into the body and look for tumors. 小到可以进入全身血液循环并寻找肿瘤。
TED演讲科学篇
PCRthe polymerase chain reactionis a crucial tool. The DNA amplification technique is used in genome sequencing, forensics and the diagnosis of various diseases. To give researchers more genetic material to work with, a PCR instrument repeatedly heat
Scientific American(十)月
Words and Their Stories: Green Expressions 词汇典故：和绿色相关的词汇 Now, the VOA Special English program, Words and Their Stories. 这里是美国之音慢速英语词汇典故节目。 Green is an important color in nature. It is the
2012年VOA慢速英语(五)月
Green Means Spring and Other Things 绿色代表着春天和其他事物 Now, the VOA Special English program, Words and Their Stories. 这里是美国之音慢速英语词汇典故。 Green is an important color in nature. It is the color of grass a
2015年VOA慢速英语(三)月
Because of course, the ear is, I mean, subject to all sorts of things. 这当然是因为，我是说，耳朵受制于很多因素。 The room we happen to be in, the amplification, the quality of the instrument,the type of sticks...etc., etc. 我们现
TED演讲国际问题篇