[计] 电子束记录仪

In the square outside the British Library in London is a sculpture of Sir Isaac Newton - The first man who asked why apples seem always to fall towards the centre of the earth. Maybe they chose it for the spot because it shows a great scientist at wo

发表于:2018-12-07 / 阅读(184) / 评论(0) 分类 英文杂志-Magazine

This is Scientific American's 60-Second Science. I'm Sophie Bushwick. Got a minute? The shortest distance between two points may be a straight line, but try telling that to electrons: when current flows down a wire, these particles zig and zag, movin

发表于:2018-12-24 / 阅读(211) / 评论(0) 分类 Scientific American(九)月

[00:00.00]Lesson Ten.Hello,hello. [00:20.01]Please say these words after me. [00:24.87]computer TV VCR videotape [00:36.70]camera stereo tape recorder [00:45.84]In this lesson,we talk about technology:TV....TV? [00:53.79]Television.And VCR...VCR? [01

发表于:2018-12-25 / 阅读(161) / 评论(0) 分类 洪恩环境英语

[00:00.00] MODULE 6 MY SCHOOL [00:05.09]Unit 16 Clean The Classroom [00:10.66]New words Expressions [00:15.10]board [00:16.84]板 [00:18.57]board rubber [00:21.00]粉刷 [00:23.43]beside [00:25.51]在...旁边 [00:27.59]exercise book [00:30.01]练习本

发表于:2018-12-29 / 阅读(236) / 评论(0) 分类 广州小学三年级 (下) (学生用书)

beam, [bi:m] n 大梁(建筑中用作支撑的木材、金属或石头);光柱;臀围;平衡木 【船】横梁; 船幅; 船舷 (秤)杆; (犁)柄; (锄)把; 卷轴; 横杆; 杠杆 (鹿角的)主干 (灯光、日光、月光等的)束, 道,

发表于:2018-12-30 / 阅读(188) / 评论(0) 分类 不择手段背单词

Three Scientists Win Nobel Prize in Chemistry Three scientists have won the Nobel Prize for chemistry for their work to simplify and improve the imaging of biomolecules. 三位科学家因为在简化和改善生物分子成像方面的成就获得了诺

发表于:2019-01-03 / 阅读(283) / 评论(0) 分类 2017年VOA慢速英语(十)月

Bob Beamon established himself as the favourite in the 1968 long jump by winning 22 of 23 meets in the pre-Olympic season. He almost met with disaster in the qualifying round. After fouling his first two attempts, he had only one try left. His teamma

发表于:2019-01-08 / 阅读(255) / 评论(0) 分类 英美文化

MODULE 6 MY SCHOOL\n [au:]模块六 我的学校\n [00:05.13]UNIT 16 Clean the Classroom\n [au:]第十六单元 打扫教室\n [00:09.74]Dialogue\n [au:]对话\n [00:12.78]Look and listen. Then read and act in groups.\n [au:]看和听。然后分组朗

发表于:2019-01-09 / 阅读(298) / 评论(0) 分类 广州版金太阳小学英语三年级下

I was born a blonde, I've always been a princess A queen of hearts, now a mother Where is the replacement for the world's front cover? From one English Rose to another I want to be the new Diana Lying on a yacht reading photo-magazines I want to b

发表于:2019-01-10 / 阅读(249) / 评论(0) 分类 音乐咖啡厅

Right on the beam To fly by the seat of his pants 美国英语当中有许多成语和俗语都和过去的历史有关系。例如,美国开拓西部的过程给美国语言增添了不少色彩。可

发表于:2019-01-14 / 阅读(270) / 评论(0) 分类 美国习惯用语

[0:0]efficiency效率,功效 [0:12.1950]elaborate elastic elbow elderly精心计划的,详尽的 橡皮图,松紧带 肘,肘部 较老的,年长的 [1:2.6076]elect electrical electron选举,推选 电的,电气科学的 电子 [1:41.1372]electronic elegant element elementary [2:36.2790]el

发表于:2019-01-16 / 阅读(292) / 评论(0) 分类 闭着眼睛飘单词 四级词汇

But this still doesn't explain why light is able to pass through glass rather than being absorbed as with most solids. 但是这还是不能解释为什么光可以穿透玻璃而不是像其他大多固体那样被吸收。 For that, we need to go a

发表于:2019-01-17 / 阅读(184) / 评论(0) 分类 TED演讲教育篇

Key Sentences(重点句子) 515.Can I speak to the head of the household? 我可以跟户主讲话吗? 516.And we are running a special offfer on the books now.现在我们这些书有个特价优惠。 517.I would like to tell you more a

发表于:2019-02-02 / 阅读(147) / 评论(0) 分类 实用英语

A-bomb, atomic bomb 原子弹 absorption 吸收 to accelerate 加速 accelerating chamber 加速室 accelerator 加速器 synchrocyclotron 同步回旋加速器 synchrotron 同步加速器 betatron 电子

发表于:2019-02-03 / 阅读(209) / 评论(0) 分类 英文语法词汇

Early effect 厄利效应 Early failure 早期失效 Effective mass 有效质量 Einstein relation(ship) 爱因斯坦关系 Electric Erase Programmable Read Only Memory(E2PROM) 一次性电可擦除只读

发表于:2019-02-05 / 阅读(203) / 评论(0) 分类 实用英语

Background carrier 本底载流子 Background doping 本底掺杂 Backward 反向 Backward bias 反向偏置 Ballasting resistor 整流电阻 Ball bond 球形键合 Band 能带 Band gap 能带间隙 Ba

发表于:2019-02-05 / 阅读(172) / 评论(0) 分类 实用英语

A possible break in the mystery of the missing Malaysia Airlines Flight 370 plane came when ships detected pings consistent with the aircraft's black box. But how does a black box actually work? Black boxes, or flight recorders, are electronic device

发表于:2019-02-17 / 阅读(479) / 评论(0) 分类 阅读空间

Neutrons and protons occupy the atom's nucleus. The nucleus of an atom is tinyonly one millionth of a billionth of the full volume of the atombut fantastically dense, since it contains virtually all the atom's mass. As Cropper has put it, if an atom

发表于:2019-02-17 / 阅读(177) / 评论(0) 分类 万物简史

The Microscopic Technique Each advance in microscopic technique has provided scientists with new perspectives on the function of living organisms and the nature of matter itself. The invention of the visible light microscope late in the sixteenth cen

发表于:2019-02-25 / 阅读(207) / 评论(0) 分类 双语有声阅读

The Tape Recorder The tape recorder is one of the most welcome and popular electronic devices ever invented. For example, it can reproduce sounds quite well, which are hardly distinguishable from the original. Besides, it is very handy and can be car

发表于:2019-03-04 / 阅读(237) / 评论(0) 分类 四六级写作指导
学英语单词
a roaring success
actual cost of producing export commodity
alkalinity.
assay plan
assumed coordinate system
baseball mitt
beer from the wood
biological-decay constant
chemical altering biologic response
chestnut canker
chief of customs
chocophile
chuggings
coasting-vessel
coaxial flashlamp
coil cooling conveyer
compass rule
coronary reflex
correspondence outside of the trade
cross armature reaction
crypted
cupel tray
cuspidaria elegans
dastan
de-activated
dip up
Dipentodon longipedicellatus
double connection plane switch
dry as a limekiln
eaton
elemental-based phosphate
even-bishop
family asphodelaceaes
firehose
firstmost
form of budget
fracture pressure
give someone a bit of curry
Google Alert
greasepaint
Guillaume metal
hanger rod
health fund
heatsink cooling
high-molecular-weight
hydrox
insulation covering
Iranophone
Iscorex
ittria
judgy
kennelled
lead fluoride
levative
lockmakers
longicauda
looking-glass finish
lower layer protocol
malt flour
maze search
metabolizable protein
methylbromide
microtransmitter
mill aisle
Mirsky-Pollister method
multiplex telegraphy
musculus adductor breviss
Nitimicin
Nomarski
on the slab
oncoma
operation exposure guide
overwhelmment
pedobarography
pedoturbations
plant maintenance expense
preparedness
quarters of refreshment
Ragusa, Prov. di
red gums
redrawing
register of Shipping of USSR
rompering
rush grasses
saturation extract
shows me up
sludge thickener
sohag
solar motion
steam cylinder
temperatur-timel curve
tertium quids
test cementing mixing
text-sentence
thrush
unbalanced fault
uniform international procedure
unmodeled
venture catalyst
Verkhoyanskiy Rayon
waast