题目

英语翻译
因为会涉及到一些电气的专有名词,所以那些翻译软件基本翻译不大对头,
Presently,all the emerging designs have one thing in common — the use of composite material technology.
Aluminum conductor carbon fiber reinforced (ACFR) from Japan makes use of the very-low-expansion coefficient of carbon fiber,resulting in a conductor with a lower knee-point of around 70°C (158°F).The core is a resin-matrix composite containing carbon fiber.This composite is capable of withstanding temperatures up to 150°C.The ACFR is about 30% lighter and has an expansion coefficient (above the knee-point) that is 8% that of an ACSR of the same stranding,giving a rating increase of around 50% with no structural work required.
Meanwhile,in the United States,3M has developed the Aluminum Conductor Composite Reinforced (ACCR).The core is an aluminum-matrix composite containing alumina fibers,with the outer layers made from a heat-resistant aluminum alloy.As with the ACFR,the low-expansion coefficient of the core contributes to a fa

提问时间：2021-04-01

答案

目前,所有的新兴的设计都有一个共同点:使用复合材料技术的发展.铝导体碳纤维增强(ACFR)来自日本利用very-low-expansion系数的碳纤维,导致一个导体与较低的knee-point大约70°C(158°F).核心是一种resin-matrix含碳纤...