电子磨砂机

A: Whoa, I never saw a meter like this before; how do you use it? B: It's simple, once you do it a few times. Do you know how the old one worked? A: I never used a parking meter before. B: So we start out by deciding whether you will use cash or a cr

发表于:2018-11-30 / 阅读(246) / 评论(0) 分类 英语情景对话-大学生活

A: Excuse me, could you help me figure out how to use this new parking meter? B: Sure, it was confusing for me also. Have you ever used a regular meter? A: Yes, I understood the old one. B: Well, on this one you can use coins or a debit or credit car

发表于:2018-11-30 / 阅读(293) / 评论(0) 分类 英语情景对话-大学生活

A: I want to know how to buy something from this machine. B: Yeah, the new ones can be tricky. What are you trying to buy? A: I want to buy one of those snack things. B: Are you ready to go? A: I'm clear so far. B: The money goes in the slot over the

发表于:2018-11-30 / 阅读(234) / 评论(0) 分类 英语情景对话-大学生活

A: I've never seen a machine like this before and need some help. B: Sure, no problem. What are you trying to get? A: I want to buy a drink. B: OK. This machine needs you to use that change machine first to get correct change. A: I've got the correct

发表于:2018-11-30 / 阅读(248) / 评论(0) 分类 英语情景对话-大学生活

A: Can you help me figure out how to use this machine? B: Yes, I would be happy to help. What do you want to buy? A: I want to buy that candy. B: OK. So this machine will make change if you need it. Do you have your dollars ready? A: Yeah, so far, so

发表于:2018-11-30 / 阅读(251) / 评论(0) 分类 英语情景对话-大学生活

A: May I help you? B: I need to copy some pages in my book. A: The copier is right over there, in the corner. B: Do I need to pay to use it? A: You have to pay to use the copier. B: How much do you charge? A: You need to pay ten cents for every copy.

发表于:2018-12-02 / 阅读(218) / 评论(0) 分类 英语情景对话-图书馆

A: What can I do for you? B: I would like to use the copy machine. A: The machine is over there. B: Do I have to pay to use the machine? A: Yes, you will have to pay to use it. B: How much? A: It costs ten cents a copy. B: Am I limited to a certain n

发表于:2018-12-02 / 阅读(198) / 评论(0) 分类 英语情景对话-图书馆

A: How may I help you today? B: I need to make some copies. A: The copier is right over there. B: Does it cost to use it? A: We do charge to use the machine. B: How much does it cost? A: We charge ten cents a copy. B: How many copies am I allowed to

发表于:2018-12-02 / 阅读(204) / 评论(0) 分类 英语情景对话-图书馆

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(183) / 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(208) / 评论(0) 分类 Scientific American(九)月

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(276) / 评论(0) 分类 2017年VOA慢速英语(十)月

A: I need to go to the ATM. B: So, why dont you? A: I have no idea how to use the ATM. B: What do you mean? A: This will be my first time using an ATM. B: I can help you with that. A: Explain to me how to use it. B: Just put your card into the machin

发表于:2019-01-11 / 阅读(206) / 评论(0) 分类 英语情景对话-银行

A: I have to use the ATM. B: Is there a problem? A: I dont know how to use it. B: What are you talking about? A: I have never used an ATM before. B: I can show you how to use it. A: How do I use it? B: You need to push your card into the machine. A:

发表于:2019-01-11 / 阅读(171) / 评论(0) 分类 英语情景对话-银行

A: I need to use the ATM. B: Whats stopping you? A: Im not sure how. B: I dont understand. A: Ive never used one before. B: I can help you figure it out. A: What do I have to do? B: Slide your card into the machine. A: Then what? B: You need to type

发表于:2019-01-11 / 阅读(209) / 评论(0) 分类 英语情景对话-银行

[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(283) / 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(179) / 评论(0) 分类 TED演讲教育篇

Its a familiar sight in many of the UKs airports long queues of people waiting to go through security to catch their flights. What if there was a simple and quick way to avoid all the hassle of having to take off all metal objects, coats, belts and s

发表于:2019-01-19 / 阅读(147) / 评论(0) 分类 英语杂谈

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(198) / 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(169) / 评论(0) 分类 实用英语

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(202) / 评论(0) 分类 双语有声阅读
学英语单词
abmicropylar
Acclimatization Institute
adaptation of supply to demand
aiyo
almucantar
anti-freeze compounds
appassionate
approach rail
argent(o)-
Aristolochia debilis
azadirone
Baltimore classification
batail
BCD Binary coded decimal
bone-fracture nail
bright sparks
canaliculus lacrimalis
Canavalia gladiolata
Cantantal
capability analysis
center lines
centralized job placement system
chuckas
compulsive habits
control/display ratio (c/d ratio)
corrosion region
Cotton-belt climate
crosspointer indicator
cum whores
Dibon
digermane
Discolomidae
doowop
electromagnetic locking
fault graben
femto-henrys
final stretch
flood subsidence
flying robins
forest zoology
golden key
Gunnerales
haith
hard-shell crabs
have a bad time
heterogonous flower
high-priceds
hydroxyethyltheophylline
hyperdynamic ileus
interactive behavior
jaspe
jeopardize,jeopardising
labouring clause
lapidate
large knot
laser powder
list of expense
macrophile
Marghita
matcht
middle ventricle of larynx
minitant
motorborne
Naxalite
New Britain Trench
non-data-set clocking
Novovolyns'k
nutribility
osteolipochondroma
out-of-wedlock
peck at sth
peeling test
Pinkerton syndrome
possiblities
prismatic binocular telescope
prochromocentric heterochromatin
product bypass
raddle
radiant supercharger
rattleweed
revivication
ridden
Selongey
silver contact
smoked herrings
speculative credit
subpyloric lymph nodes
tailgate picnic
take a load from someone's mind
telematic information
theory choice
thermal microphone
tibbitts
Token Ring Network
tooshies
Tosa-wan
Trifluviennes
tuntun
undersalt
war risk clause
whorehound
withdraw collar