色多多在线观看播放-色多多在线观看高清免费-色多多在线观看视频-色多多在线看-欧美aaaaa性bbbbb小妇-欧美aaaav免费大片

—— 請按鍵盤 空白鍵 開始游戲 ——

關于伊萊·惠特尼的名人名言哲理格言警句語錄 - 每日文摘
伊萊·惠特尼 軋棉機發明者，農業技術革新者

伊萊·惠特尼發明的軋棉機徹底改變了棉花加工業，提高了生產效率。他的工作對美國南部農業經濟產生了重大影響。

發明家的職責是使他的工作盡可能對公眾有用和可及。
It is the duty of the inventor to make his work as useful and as accessible as possible to the public.
機械的完美在于以最小的摩擦和浪費產生預期的效果。
The perfection of machinery is to produce the desired effect with the least possible friction and waste.
我從未見過一個我不試圖用機械方法解決的問題。
I never saw a problem that I did not attempt to solve by mechanical means.
I never saw a problem that I did not attempt to solve by mechanical means.
我從未見過一個我不試圖用機械方法解決的問題。
最偉大的發明是那些最直接滿足人類需求的發明。
The greatest inventions are those which most directly meet the wants of mankind.
The greatest inventions are those which most directly meet the wants of mankind.
最偉大的發明是那些最直接滿足人類需求的發明。
設計中的簡潔是終極的復雜。
Simplicity in design is the ultimate sophistication.
制造業中的分工是我們優于其他國家的偉大原則。
The division of labor in manufacturing is the great principle by which we gain advantage over other nations.
我一直認為，機器的真正考驗在于它在普通勞動者手中的實際效用。
I have always considered that the true test of a machine is its practical utility in the hands of the common laborer.
I have always considered that the true test of a machine is its practical utility in the hands of the common laborer.
我一直認為，機器的真正考驗在于它在普通勞動者手中的實際效用。
軋棉機的發明是需求和觀察的結果。
The invention of the cotton gin was the result of necessity and observation.
機械和節省勞力的裝置只有在降低制造成本時才具有價值。
Machinery and labor-saving devices are only valuable as they serve to reduce the cost of manufacture.
Machinery and labor-saving devices are only valuable as they serve to reduce the cost of manufacture.
機械和節省勞力的裝置只有在降低制造成本時才具有價值。
我的主要目標之一是制作工具，讓工具本身塑造工件，賦予每個部分應有的比例。
One of my primary objects is to form the tools so the tools themselves shall fashion the work and give to every part its just proportion.
工作的完美程度取決于方法的簡潔性。
The perfection of the work depends on the simplicity of the means.
主站蜘蛛池模板： 一级黄色性生活视频 | 男女很黄很色床视频网站免 | 国产v综合v亚洲欧美大另类 | 最近2019好看的中文字幕免费 | 亚洲视频aaa | 成年网站在线观看 | 免费观看一级成人毛片软件 | 天天操天天摸天天爽 | 中文字幕亚洲国产 | 日日噜噜噜夜夜爽爽狠狠 | 在线a人片免费观看国产 | 亚洲一区二区免费在线观看 | 九九久久国产精品免费热6 九九久久亚洲综合久久久 九九伦理 | 伊人网在线视频观看 | 日韩欧美视频在线 | 成人h在线播放 | 国产一区二区三区视频在线观看 | 欧美在线小视频 | 国产一区二区高清 | 99在线在线视频免费视频观看 | 国产欧美激情一区二区三区-老狼 | 色黄网站在线观看 | 日韩视频免费在线播放 | 久爱免费观看在线精品 | 黄色一级视频网 | 二级特黄绝大片免费视频大片 | 精品一区二区三区在线观看视频 | 伊人网国产| 18以下勿进色禁网站 | 欧美黄色免费大片 | 看全色黄大色黄大片免责看 | 欧美日韩在线播放 | 国产精品一区二区久久精品 | 黄视频网站免费 | 最好看的毛片 | 国产一区日韩二区欧美三区 | 婷婷视频在线观看 | 日韩高清一区二区三区五区七区 | 老妇女人一级毛片 | 成人永久免费视频 | 黄色片免费观看网站 |