This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? Don't be fooled by those big bovine eyes and the mouth slowly chewing cudcows have a magnetic personality. At least thats the claim made by German researchers in the

发表于:2018-12-24 / 阅读(73) / 评论(0) 分类 Scientific American(八)月

说一口流利的英语,从简单的单词开始。 听听,读读,背背,今天你的词汇量又增加了5个。 单词/词义 中英例句 单词听读 kneel [ ni:l ] She knelt to pray. v. 跪

发表于:2018-12-30 / 阅读(86) / 评论(0) 分类 每日攻克5词

access arm 磁头臂,存取臂 access time 存取时间 adder 加法器 address 地址 alphanumeric 字母数字的 analog computer 模拟计算机 analyst 分析员 area 区域 array 数组,阵列

发表于:2019-01-09 / 阅读(64) / 评论(0) 分类 英文语法词汇

But heres a mystery: When you press pause on the VCR, the screen doesnt go blank. Instead, you get a frozen image. Remember, you need a changing magnetic signal to create even a still video image. If the video tape isnt moving, where is this changing

发表于:2019-03-06 / 阅读(168) / 评论(0) 分类 英语时差8,16

Although audio tapes and video tapes look different, theyre based on the same principles. Each has a roll of magnetic material which slides past the so-called playback head in the VCR or cassette deck (cassette decks have one playback head, VCRs have

发表于:2019-03-06 / 阅读(164) / 评论(0) 分类 英语时差8,16

How Your VCR holds a Note VCR-盒式磁带录像机VCR是Video Cassette Recorder的缩写盒式磁带录像机。就功能上而言,它是使用空白录像带并加载录像机进行影像的录制及存储的监控系统设备。VCR作为许多晚会

发表于:2019-03-09 / 阅读(123) / 评论(0) 分类 英语听力文摘 English Digest