单词：constant voltage arc welding power supply
单词：constant voltage arc welding power supply 相关文章
中文 英文 缩写 电气互锁 electric interlock 电气环境 electrical environment 电气特性 electrical characteristic 电容性负载 capacitive load 电视电话计算机 teleputer 电视监视
电信英语
You may not need to worry about batteries someday soon. A 15-year old girl, Ann Makosinski from Victoria, British Columbia, Canada has invented a flashlight that uses the heat from your hand for power. Instead of using batteries the flashlight uses P
轻松英文阅读
图片1 gram n．克 例句：The cook needs a gram of vinegar. 厨师需要一克醋。 grammar n. 文法，语法 例句：That is not, properly speaking ,a dictionary but a grammar book. 严格地说，那不是一本字典，而是一本语法书。
漫画搞定六级词汇（文本+音频）
China has long depended on coal-burning power plants to fuel its explosive growth over the past three decades. As a result, air pollution has risen to alarming levels in central and eastern regions. Policymakers have been working hard to shift the co
2017CRI中国国际广播电台
Bird on a Wire 当我们行走在马路上时，经常可以看到成群的麻雀或乌鸦停落在几万伏的高压电线上，它们不仅不会触电，而且一个个显得悠闲自得。可是，你也知道，如果有人不小心碰到高压线
英语听力文摘 English Digest