Researchers from Shandong University in China and the University of California, Riverside in the US have created paper which can stand to be re-printed on scores of times, reported the Daily Mail in the UK. 据英国《每日邮报》报道,中国山

发表于:2018-12-18 / 阅读(237) / 评论(0) 分类 英语新闻

Todd: Hey, er, Mark, could you tell me about the first job you ever had? Mark: I think it was when I was at university, well my first long term part time job was when I was at university and one night a week I used to work for 12 hours from 6 pm til

发表于:2019-01-30 / 阅读(90) / 评论(0) 分类 英语访谈对话

vibration 振动 sound 音 tone 音(乐音) musical tone 乐音 noise 噪音 acoustics 声学 psychoacoustics 心理声学 frequency 频率 intensity 强度 time 时间 wave form 波形 pitch 音高 loudness 响度 duration 时值 timbre 音色 (tone

发表于:2019-02-07 / 阅读(46) / 评论(0) 分类 英语口译

vibration 振动 sound 音 tone 音(乐音) musical tone 乐音 noise 噪音 acoustics 声学 psychoacoustics 心理声学 frequency 频率 intensity 强度 time 时间 wave form 波形 pitch 音高 loudness 响度 duration 时值 timbre 音色 (tone

发表于:2019-02-07 / 阅读(37) / 评论(0) 分类 英语口译

Todd: Hey, er, Mark, could you tell me about the first job you ever had? Mark: I think it was when I was at university, well my first long term part time job was when I was at university and one night a week I used to work for 12 hours from 6 pm til

发表于:2019-02-08 / 阅读(48) / 评论(0) 分类 原版英语对话1000个

An employee carefully scans a man standing still behind two photographic lamps with a gun-like scanner in his hand. The whole process takes approximately 10 minutes. After loading the data into the computer, the rest work is left to the 3-D printing

发表于:2019-02-14 / 阅读(54) / 评论(0) 分类 英闻天下