单词：absorption hologram
单词：absorption hologram 相关文章
Imagine a world where sunlight can be captured to produce electricity anywhere, on any surface. The makers of thin-film flexible solar cells imagine that world too. But a big problem has been the amount of silicon needed to harvest a little sunshine.
Scientific American(二)月
This is the VOA Special English Technology Report. High-quality systems used in video conferencing are called telepresence systems. The images are life-size yet not truly lifelike. They lack the depth that people would normally see if they were in th
2010年VOA慢速英语(十一)月
Around the world, many people start their day with a cup of coffee, a cappuccino, or an espresso. At the same time, there are many people with various thyroid conditions who rely on synthetic thyroid hormone replacement medication like levothyroxine
实用英语
What is the cosmological effect of singer Zayn Malik leaving the best-selling boy band One Direction and consequently disappointing millions of teenage girls around the world? 歌手泽恩马利克退出热门的单向男孩乐队，进而导致数以百
阅读空间
He was watching TV. The commercials started. One after another they came, like subway riders going through turnstiles. Five minutes later, the program resumed. Ten minutes later, a new cluster of commercials started. Five minutes later, the program r
英文短篇故事（纽约）
Ever since money was invented there have been people trying to fake it. Thats why its important for everyone to know how to spot a fake banknote. And the best thing to do is to know by heart what genuine notes should look like. Here is our expert Lee
英语听力文摘 English Digest