[计] 光敏管

light sensitive tube的用法和样例:

例句

  1. It intercepts a portion of the light impinging on the photocell.它遮住一部分照射在光电管上的光。
  2. The phototube, a very special type of electron tube, is the heart of the talking-picture projector.光电管,一种非常特殊的电子管,是有声电影放映机的心脏。

[00:01.00]Module 2 Developing and Developed Countries [00:09.22]Vocabulary and Listening [00:11.93]Activity 3 Check the meaning of these words [00:16.06]Now listen to the conversation and tick the topics you hear. [02:34.36]Activity 4 Listen again ch

发表于:2018-12-04 / 阅读(228) / 评论(0) 分类 外研社新标准高中英语必修(1-4)

Gene Therapy Halts Vision Loss in Dogs Researchers have stopped vision decline in dogs with an inherited disease that causes blindness. The gene therapy technique they used may someday stop vision loss in humans. Retinitis pigmentosa (RP) is an eye d

发表于:2018-12-16 / 阅读(64) / 评论(0) 分类 VOA标准英语2012年(二月)

Bringing up a sensitive topic Can I talk to you for a minute? Can I ask you something? Do you mind if I ask you something? I need to talk to you for a minute. I have to tell you something. There's something I need to tell you. There's something I thi

发表于:2018-12-17 / 阅读(108) / 评论(0) 分类 跟我学英语入门篇

Sometimes it is hard to see the light, especially it lies in the invisible spectrum, like ultrared, ultraviolet radiation. But if you long to see the unseeable, you might interested to hear that under certain conditions people can catch a glimpse of

发表于:2018-12-24 / 阅读(65) / 评论(0) 分类 2015年Scientific American(一)月

[00:06.37]Some people cannot see all colors correctly. [00:10.92]They cannot see all the colors in a rainbow or a sunset. [00:16.40]They cannot tell if the meat they are cooking is done or if a fruit is ready to be eaten. [00:23.61]Poor color sight a

发表于:2018-12-26 / 阅读(59) / 评论(0) 分类 美国英语听力80篇

Night Vision And Humans: Why Cant We See Color? When we are in a fairly dark room, or outside at night away from lights, we can still see, but we cant see the colors of things very well. Why is that? There are two kinds of light-sensitive organs loca

发表于:2018-12-31 / 阅读(77) / 评论(0) 分类 英语听力文摘 English Digest

Helen turned on her flashlight. Nothing happened. The light did not come on. There was no light. What was wrong with her flashlight? She unscrewed the top of the plastic flashlight. Helen took the two batteries out of the plastic tube. She looked at

发表于:2019-01-02 / 阅读(82) / 评论(0) 分类 超级简单英语阅读

Smaller Fingers Mean More Sensitive Fingertips A study in the Journal of Neuroscience finds that people with smaller fingers have more sensitive fingertips, probably due to a higher concentration of touch receptors in a given area. Cynthia Graber rep

发表于:2019-01-02 / 阅读(121) / 评论(0) 分类 60秒科学

Yvonne: This is 6 Minute English, I'm Yvonne Archer and Alice has kindly joined me for today's programme. Hello Alice. Alice: Hi Yvonne. Yvonne: Now Alice, how do you get around London? Alice: Ooh by bus, bicycle and usually the Tube. Yvonne: Aha, an

发表于:2019-01-07 / 阅读(162) / 评论(0) 分类 六分钟英语

Some bacteria have adapted to super cold environments for millions of years. And scientists have isolated some of the essential genes that allow bacteria to tolerate their harsh living conditionsbecause these same genes might help in the creation of

发表于:2019-01-11 / 阅读(114) / 评论(0) 分类 英语杂谈

London's 'Tube' Plays Crucial Olympics Role Massive overhaul Head into the Tube and you never quite know what you might find. With 12 million passengers passing through every day - and three million more expected during the Olympics - the Tube is its

发表于:2019-01-13 / 阅读(128) / 评论(0) 分类 VOA标准英语2012年(七月)

BBC Learning English London Life Friendliness on the tube Yvonne:I'm Yvonne Archer and this is London Life from bbclearningenglish.com. Hello! In today's programme, we're talking about friendliness on London's tubes. Is there any? As you probably kn

发表于:2019-01-16 / 阅读(207) / 评论(0) 分类 伦敦生活

今天我们要学的词是sensitive。 Sensitive, 是敏感的意思。A sensitive topic, 就是敏感的话题。 Employment experts warn job seekers not to give out sensitive personal information when applying for positions online, 就业问题专家

发表于:2019-01-20 / 阅读(49) / 评论(0) 分类 英语单词荟萃

By Paul Sisco Washington 16 April 2008 A congressional subcommittee recently heard testimony that sensitive aircraft technology and a vast array of stolen military gear is for sale on eBAY, Craigslist and other Internet sites. A Government Accountabi

发表于:2019-01-20 / 阅读(83) / 评论(0) 分类 VOA常速英语2008年(四月)

Because from trillions of miles away, these small planets get lost in the blinding glare of their stars brightness. The sad truth of the matter is that earth-like planets are near cosmic specks of dust. And therefore detecting them is really quite ha

发表于:2019-01-22 / 阅读(64) / 评论(0) 分类 自然百科2010年

Cats And Colors You can look at that quilt your cat is curled up on and see a patchwork of greens, blues, and yellows. Your cat, however, cannot see color variation in the quilt. And here is why. Both humans and cats depend on the back layer of the e

发表于:2019-01-22 / 阅读(95) / 评论(0) 分类 英语时差8,16

Helen turned on her flashlight. Nothing happened. The light did not come on. There was no light. What was wrong with her flashlight? She unscrewed the top of the plastic flashlight. Helen took the two batteries out of the plastic tube. She looked at

发表于:2019-01-24 / 阅读(90) / 评论(0) 分类 英语第1级听力-English Level 1

今天我们要学的词是sensitive。 Sensitive, 是敏感的意思。A sensitive topic, 就是敏感的话题。 Employment experts warn job seekers not to give out sensitive personal information when applying for positions online, 就业问题专家

发表于:2019-01-25 / 阅读(81) / 评论(0) 分类 英语每日一词

Lesson 332 He's sensitive. 1.He's sensitive.他很敏感。 2.Don't be so sensitive.别那么爱过敏嘛。 3.You're too sensitive.你太敏感了。 4.It's sensitive question.这是个敏感的问题。 5.The instrument is sensitive.这仪器很灵敏

发表于:2019-02-12 / 阅读(111) / 评论(0) 分类 辛沛沛NO-BOOK 辛沛沛傻瓜机口语极短句

Cats And Colors 人类能够很容易的分辨出不同的颜色。那么猫呢?虽然猫的视力很好,即使在非常昏暗的光线条件下也能看见,但它对于如何分辨不同的颜色似乎并不擅长。 Cats and Colors on this mo

发表于:2019-02-24 / 阅读(64) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
abnormal polychromate
accelerator anode
arms control
automatic closed-loop control system
balistoides viridescens
become of age
bellus
boychild
Budapest Zoo
call the attention of to
caster sugar
causability
champignons
channel grant high
chenopodium album l. var. centrorubrum mak.
CHOA
compound norgestrel tablets
cowbells
cuplikest
demyelinating encephalopathy
displacement engine
EKV
embryologists
exposure control stripe
filtration underground
fluorescent tracer technique
four parameter model
funday
fused-impurity phototransistor
ginned cotten
gotbaum
have no further use for
heavy water(d2o)
helices
high impedance tube
host bus
hymograph
Import List from Cells
inobservation
interrupted shingle layup
iskyan
lead the way
looseth
low-thoughted
lunar long period tide
matrimonial age
maxiscooter
McBurney incision
meatloaves
methylclhlorofonmate
misopedia
multi-stage stressing
nadiumotherapy
nephrocystosis
nessel
nonconsumably melted
oxaloacetic acids
Pacific Communications Network
Patricksburg
PC-PFC
physical I/O address
Pocomam
portable belt conveyer
positron annihilation
postillate
prothetic
pulse-converter system of turbocharging
pycnodysostosis
quesadilla
rangemaster
regional motor transportation enterprise
repocketed
repunctuation
response coefficient
Rhododendron dasycladoides
rotary flow
rouennaiss
rules of false position
see good to do sth
self detaching hook
SHCO
single-shear double rivet joint
sphaerocarpaceaes
stably parallelizable
straight fender
surrosion
the enemy from within
the population
thrs
timber floor base
transconductance bridge
trencher-men
tricked-out
two-color diagram
unterminated
upright lock
vertical opener
virtualised
well balanced
wet seal holder
woodlot
xiphonite