金属切削 metal cutting 机床 machine tool 金属工艺学 technology of metals 刀具 cutter 电路 circuit 半导体元件 semiconductor element 反馈 feedback 发生器 generator 直流电源

发表于:2019-01-08 / 阅读(69) / 评论(0) 分类 英文语法词汇

Maybe someday I'll be strong. Maybe it won't be long. I'll be the one who's tough. You'll be the one who's got it rough, It won't be long and maybe I'll be real strong. Maybe I'll do things right. Maybe I'll start tonight. You'll learn to cry like me

发表于:2019-01-11 / 阅读(57) / 评论(0) 分类 美国乡村音乐

Thermometers just tell you the temperature. Thermostats need to do more than that. In addition to reading the air temperature, thermostats also turn your furnace on if the air gets too cool, and turn it off again when the air heats up. How do they do

发表于:2019-01-26 / 阅读(31) / 评论(0) 分类 英语听力文摘 English Digest

Modern Talking - Brother Louie Deep love is a burning fire Stay, Cause then the flames grow higher Babe, Don't let him steel your heart It's easy, easy Girl, this game can't last forever Why ? We cannot live together try, Don't let him take your love

发表于:2019-02-02 / 阅读(62) / 评论(0) 分类 好听的英文歌曲

Modern Talking--Brother Louie Dear, love is a burning fire Stay, cause then the flames grow higher Babe, don't let him steel your heart It's easy, it's easy Girl, this game can't last forever Why ? Why can not live together Modern Talking Try, don't

发表于:2019-02-08 / 阅读(39) / 评论(0) 分类 好听的英文歌曲

后角 clearance angle 龙门刨削 planing 主轴 spindle 主轴箱 headstock 卡盘 chuck 加工中心 machining center 车刀 lathe tool 车床 lathe 钻削 镗削 bore 车削 turning 磨床 grinder 基准 benchmark 钳工 locksmith 锻 forge 压模

发表于:2019-02-18 / 阅读(78) / 评论(0) 分类 实用英语