Fat is an excellent insulator against the cold.脂肪是极好的抵御寒冷的绝热体。Dry air is a good insulator, but sea water is not.干燥空气是一种好绝缘物, 海水则不是.The atoms of an insulator hold their electrons very tight.绝缘体的原子把电子抓得很牢....
Fat is an excellent insulator against the cold.脂肪是极好的抵御寒冷的绝热体。Any two conductors separated by an insulator are said to form a capacitor.由绝缘体隔开任何两个导体就组成电容器.The FRP is an insulator to electricity, so it is good in safety.因...
Avid Bob Dylan fans treasure bootlegged recordings.鲍勃·迪伦的疯狂歌迷们对他的盗版唱片视若珍宝。Goods ( especially alcohol ) are bootlegged when they aresmuggled or manufactured and sold illegally.bootleg指非法运送、制造及出售货物 ( 尤指酒 ).And they will fi...