单词：refrigerated centrifuge
冷冻离心分离机
单词：refrigerated centrifuge 相关文章
Smartphone App Helps Snakebite Victims Scientists in Denmark have developed a venom test kit to help doctors treat victims of snake bites. The kit was created to be simple and has only two pieces of equipment: a centrifuge and a smartphone. 丹麦科学
发表于:2019-01-03 / 阅读(157) / 评论(0)
2018年VOA慢速英语(二)月
2018年VOA慢速英语(二)月
Ever wander through a supermarket and past the open refrigerated cases that house cream cheese, butter and OJ? The refrigerated shelves are protected by jets of air that blow across the front. These jets form an air shield to keep the warm air out. T
发表于:2019-01-08 / 阅读(229) / 评论(0)
Scientific American(十一)月
Scientific American(十一)月
Chinese President Xi Jinping is now in Venezuela for the third leg of his four-nation Latin America tour. The trip to Venezulea comes on the 40th anniversary of the two countries forging diplomatic ties. As part of his time there, Xi Jinping is expec
发表于:2019-01-18 / 阅读(159) / 评论(0)
2014CRI中国国际广播电台
2014CRI中国国际广播电台