4. Although the amount of energy produced is small -- 20 microwatts(百万分之一瓦) -- it is quite impressive(给人印象深刻的) in relation to(与...相比) the tiny scale of the motor. The whole setup is less than 200 nanometers on a side, or hundreds of times smaller than the width of a human hair. If it could be scaled up to the size of an automobile engine, it would be 100 million times more powerful than a Toyota Camrys 225 horsepower V6 engine.

　　5. In 1988, Professor Richard Muller and colleagues made the first operating(工作的， 运行的) micromotor(微型发动机), which was 100 microns(微米) across, or about the thickness of a human hair. In 2003, Zettls group created the first nanoscale motor. In 2006, they built a nanoconveyor(纳米传送带), which moves tiny particles along like cars in a factory.

　　6. Nanotechnology(纳米技术) engineers try to mimic nature, building things atom-by-atom. Among other things, nanomotors could be used in optical circuits to redirect light, a process called optical switching. Futurists envision(预想) a day when nanomachines(纳米机器), powered by nanomotors(纳米发动机), travel inside your body to find disease and repair damaged cells.

　　练习：

　　1.Paragraph 2

　　2.Paragraph 4

　　3.Paragraph 5

　　4.Paragraph 6

【15年的职称英语理工类AB级考点重点复习笔记(3)】相关文章：

★ 2015年职称英语考试卫生类A考前每日一练(1)

★ 2015年的全国职称英语考试A级单词精选(五)

★ 职称英语考试高频词汇(12)

★ 2015年职称英语备考高频词汇730个(9)

★ 2015年职称英语卫生类概括大意模拟题五

★ 14年职称英语理工类AB级考点重点复习笔记(7)

★ 职称英语等级考试珍藏句型分析宝典(2)

★ 职称英语卫生类考试考前每日一练(30)

★ 2015年职称英语重点语法备考辅导：让步状语从句

★ 职称英语理工类考试考前每日一练(16)