单词：vacuum metallizing coating
单词：vacuum metallizing coating 相关文章
This is Scientific American 60-Second Science. I'm Cynthia Graber. This will just take a minute. The fridge is one of your home's biggest energy hogs. Better insulation can make refrigerators much more efficient. And a panel encasing a vacuum is one
Scientific American(五)月
It may sound silly, but its really a good question, because weightlessness does make a visit to the latrine a tricky proposition. Weightlessness poses two main problems in the bathroom. The first is that an astronaut could drift away from the bowl at
英语听力文摘 English Digest
靛蓝青年布：Indigo chambray 人棉布植绒：Rayon cloth flocking PVC植绒：PVC flocking 针织布植绒：Knitting cloth flocking 珠粒绒：Claimond veins 倒毛：Down pile making 平绒：velveteen (velvet-plain) 仿麂皮：Micro suede
实用英语
D：Yael, do you know what's the best thing about state affair? Y: Do you tell. D: Fried candy bars, two favoriate treats rolled into one. And doesn't it bother your mind how they manage fried chacholate without making a terrible mess? Fried candy ba
英语听力文摘 English Digest
世界上跑得最快的是什么？答案是光速。它每秒能跑186,280英里。因为即使在太空中，光速也大致相同，所以光年也就用于描述不同星球之间的距离。记住了哦，光年是距离单位，不是时间单位
英语听力文摘 English Digest
Daily Life - Cleaning the House A: Honey, the house is such a mess! I need you to help me tidy up a bit. My boss and her husband are coming over for dinner and the house needs to be spotless! B: Im in the middle of something right now. Ill be there i
英语播客-EnglishPod