91精品视频在线看_久久国产精品久久国产片_青春草在线视频精品_伊人天天躁夜夜躁狠狠

歡迎您訪問英語作文: 寫一篇不少于150個單詞的技術發明.你的寫作應該涵蓋以下幾點 (1)簡!

英語作文: 寫一篇不少于150個單詞的技術發明.你的寫作應該涵蓋以下幾點 (1)簡

更新時間:2021-06-10 13:45:15作者:admin2

This invention, basic principle and technology of the existing new technology scheme based on the qualitative difference, also known as basic technical invention. As the invention of the steam engine technology for conversion of thermal energy to mechanical energy, the difference between simple mechanical only mechanical energy conversion in principle. Electric power technology based on the principle of electromagnetic induction is the invention of the electric energy and transformation of mechanical energy. From the utilization of nuclear chain reaction principle to the use of nuclear fusion reaction principle, can obtain the pioneer invention ofnuclear technology. Modern and contemporary pioneering technology invention mostly based on scientific principles break for the conditions, the conscious application of new scientific principlesto solve technical problems. Many of the major scientific breakthrough, will lead to technicallypioneering invention.