单词:vortex tube refrigeration
单词:vortex tube refrigeration 相关文章
This is Whats Trending Today When it comes to weather, it is hard to sound more frightening than to call a storm a bomb cyclone. 谈到天气,很难听到什么比炸弹旋风更可怕的了。 But that is how weather experts are describing a huge
人口数量增长速度过快。给我们的生存环境带来哪些影响? Alice: Hello, I'm Alice Finn: And I'm Finn. Alice: And this is 6 Minute English! This week were talking about population growth and the effects it might have on the world.
Alice: Hello, I'm AliceFinn: And I'm Finn.Alice: And this is 6 Minute English! This week were talking about populationgrowth and the effects it might have on the world. At the moment itsestimated that there are about 7 billion people on the planet. F
BBC Learning English London Life Friendliness on the tube Yvonne:I'm Yvonne Archer and this is London Life from bbclearningenglish.com. Hello! In today's programme, we're talking about friendliness on London's tubes. Is there any? As you probably kn
a very interesting read about the rapid expansion of refrigeration in China: 关于中国制冷业的快速发展,有一个有趣的事实: It is not simply transforming how Chinese people grow, distribute and consume food. It also stands to beco
A polar vortex, also known as a circumpolar vortex, is a wind current that circulates above the North and South Poles. The currents sit like spinning hats above the Poles. 极地涡旋,又叫环极涡旋,是环绕在南极和北极上空的一股气