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(412) / 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(491) / 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(381) / 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(396) / 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(383) / 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(355) / 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(310) / 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(322) / 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(450) / 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(363) / 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(426) / 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(308) / 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(247) / 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(338) / 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(455) / 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(312) / 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(309) / 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(351) / 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(292) / 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(350) / 评论(0) 分类 双语有声阅读
学英语单词
a code of conduct
accounts payable system
actinocladothrix
agitant
allomonodiploid
applied electrochemistry
autoxidisable substance
back pressure trubine
backup frequency
bent drill pipe
beta-defensins
blowtank-type pneumatic conveyer
broomed
cat yawl
cathodoluminescent
centreds
ceratium trichoceors
Charcot-Marie-Tooth disease
Chopimzinho
clampetts
cleradendrin
code generating
coherence condition
commercialpar
comprehensive ultrasonic examination record
concrete vibrating table
connudate
contemporary surgery
cooling waterbox
crude pine tar
doom laden
duned
ecodoomster
feather ore
fluid or gate
four-hundred
fundamental interconnection matrix
gentlemen's club
glottomania
glycoarrays
gobinds
H space
Hilbert programme
historians
horizontal control
hotmelt
humbies
idle thrust
indicated altitude
irreducible correspondence
keldra
kilolitre
late maturity
mala stijena
map bus
masseteric hypertrophy
master bill of materials
memester
Micromeria chamissonis
Mount Fletcher
olfactories
open pressure
optimum cutting condition
package store
paraphylum
passing bay
penicillin oes
piezoelectric filter
potassa sulfurata
Pro-tet
pulse dot soldering iron
registax
repreparation
resubject
Sanorex
scattering geometry
sea water conversion
seismic damper
Shaksperianism
Sinkiang
small interfering rna
soogan
spinal evoked potential
St-Aimé
stick mast
stipa inebrians
stoors
stoss side
successive work expansion
Synthetic Lease
totanus (totanus) forcipatus
transparent file system sharing
unregulated collective investment scheme
unrestricted plastic flow
uranium moluranite
vertical acceleration level
votest
wawd
web color
Western literature
wringed
Yanayacu