单词	constantan
释义	constantan /ˈkɒnst(ə)ntan / noun [mass noun] A copper-nickel alloy used in electrical work for its high resistance.The method according to the invention has for this purpose the feature that after the first lacquer coating has been selectively removed, at the positions where this has occurred the first electrically conductive material - preferably constantan - is etched away to a predetermined depth and only then is the second electrically conductive material - preferably copper - applied respectively introduced at these positions.... The polarity of the two Type E thermocouples is critical so that the Constantan on both of the thermocouples are connected together. The constantan was patterned using conventional photoresist. Origin Early 20th century: from constant + -an.
随便看	have a nice day have ants in one's pants have a/one's cross to bear have a (or a good or half a) mind to do something have a (or one's) bellyful have a plum in one's mouth have a problem with have a screw loose have a shy at have a soft spot (also soft corner) for have at have a thick (or thin) skin have a thick skin have a thing about have a thing for have a thin time have a tiger by the tail (also be riding a tiger) have a tin ear have a way with have a way with one have a whale of a time have a will of one's own have a word have a word in someone's ear have bats in the (or one's) belfry

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。