有效纤芯直径

So we know that the distance must be about eight thousand miles, as twenty-five is a little more than three times eight. 那么我们就知道从世界一面到另一面的距离肯定是大约8000英里,因为25是8的三倍多一点。 That is no

发表于:2018-12-04 / 阅读(173) / 评论(0) 分类 美国学生世界地理教材

The Moon 月球 We find that the moon is about 239,000 miles (384,551 km) away from the earth, and, to within a few thousand miles, its distance always remains the same. Yet a very little observation

发表于:2018-12-05 / 阅读(143) / 评论(0) 分类 有声英文阅读

The Moon We find that the moon is about 239,000 miles (384,551 km) away from the earth, and, to within a few thousand miles, its distance always remains the same. Yet a very little observation shows that the moon is not standing till. Its distance fr

发表于:2018-12-07 / 阅读(94) / 评论(0) 分类 双语有声阅读

Quarter 25分硬币 A quarter is an American or Canadian coin. quarter是指美国或加拿大的一种硬币。 How much is a quarter? 这种硬币值多少钱呢? A quarter is equal to 25 cents. 它等价于25分。 It is worth one fourth of a do

发表于:2018-12-13 / 阅读(118) / 评论(0) 分类 与美国小学生一起学英文第5册

一个英语单词可分为三部分:前缀(prefix)词根(root)后缀(suffix)。位于词根前面的部分就是前缀。前缀,可以改变单词的意思。 di- 表示使分开,离开 distinguish = di + sting(刺)+ uish 将刺挑

发表于:2018-12-19 / 阅读(98) / 评论(0) 分类 英语PK台

围绕树木展开的话题.... Dan: Hello and welcome to this weeks 6 Minute English. Im Dan Walker Smith and today, for the second part of our tree climbing programme, Im joined by Kate. OK Kate, well last week we were talking about tree climbing,

发表于:2018-12-27 / 阅读(115) / 评论(0) 分类 一起听英语

An average of 800 tornados occur every year in the USA. 美国每年平均有八百个龙卷风。 They can generate wind speeds faster than 250 mph. 龙卷风的风速可以超过时速二百五十英里。 At times, they devastate whole communities

发表于:2018-12-28 / 阅读(122) / 评论(0) 分类 赖世雄英语新闻听力通

1. circumference /səˈkʌmfərəns/ -- distance around a circle or rounded body; perimeter The circumference of a circle equals times the diameter. 圆周长等于与直径的乘积。 2. circumlocution /ˌsɜ:kəmləʊˈkju:ʃən/ -- roundabout way

发表于:2018-12-30 / 阅读(141) / 评论(0) 分类 突破英文词汇

algebra n. 代数 algorithm n. 运算法则 circumference n. 周长 curve n. 曲线 database n. 数据库 decimal adj/n. 十进制 diameter n. 直径 dimension n. 维 equation n. 方程式 facet vt. 刻画平面 geometry n. 几何学 graphic adj. 生动

发表于:2018-12-30 / 阅读(148) / 评论(0) 分类 80天攻克雅思核心词汇

Hi, I'm Carl Azuz. Welcome to this Columbus Day edition of CNN Student News! We'll be talking more about Columbus Day in just a couple minutes. But first, we're reporting on a breakthrough in Chile. And we mean that literally. A hole big enough to re

发表于:2019-01-08 / 阅读(135) / 评论(0) 分类 CNN2010年(十)月

HEALTH REPORT -October 30, 2002: Breast Cancer Operation Studies By Nancy Steinbach This is the VOA Special English Health Report. Two new long-term studies have compared two operations for early brea

发表于:2019-01-09 / 阅读(130) / 评论(0) 分类 健康与环境

Diameter 直径 A diameter is a straight line inside a circle. 直径是圆内的直线。 Can any straight line in a circle be a diameter? 圆内的任何直线都是直径吗? No, its two ends must meet at two different points on the circle. 不是

发表于:2019-01-10 / 阅读(110) / 评论(0) 分类 与美国小学生一起学英文第9册

Sand 沙子 If you look around you, you can find sand very easily. 你若环顾四周,就很容易发现沙子。 Sand comes from rocks. 沙子源自岩石。 Each grain of sand is less than 2 millimeters in diameter. 每粒沙子的直径小于两毫

发表于:2019-01-10 / 阅读(140) / 评论(0) 分类 与美国小学生一起学英文第5册

In the storeroom 在库房 A:Where can I find a spare hose for the pump? A:我在哪里可以找到一跟备用的机泵软管? B:What size do you need? B:你需要什么型号的? A: 25 mm diameter. A:直径25毫米的。 B:They're at the back o

发表于:2019-01-14 / 阅读(138) / 评论(0) 分类 职业技术英语口语

A: I am looking for a pan. B: No problem. What size would you like? A: A big one would be nice. B: How about this one? It's our biggest16 in diameter. A: Oh, yes. I like that one. But it's too heavy. B: Okay, try this one. It's made of aluminum. A: O

发表于:2019-01-20 / 阅读(176) / 评论(0) 分类 购物英语对话

A: I am looking for a pan. B: No problem. What size would you like? A: A big one would be nice. B: How about this one? It's our biggest16 in diameter. A:I like that one, but it's too heavy. B: Okay, try this one. It's made of aluminum. A: This is muc

发表于:2019-01-21 / 阅读(157) / 评论(0) 分类 购物-Shopping

Tree climbing: Part 2 NB: This is not an accurate word-for-word transcript Dan: Hello and welcome to this weeks 6 Minute English. Im Dan Walker Smith and today, for the second part of our tree climbing programme(节目,计划), Im joined by Kate.

发表于:2019-02-05 / 阅读(153) / 评论(0) 分类 六分钟英语

今天我们要学的词是hard-core。 Hard-core, 是指坚定的,铁杆的。Hard-core gamers, 是指打电玩上瘾的人。Hard-core members of the party, 是指一个政党的中坚力量。All my friends are hard-core Redskin fans, 我的朋友

发表于:2019-02-08 / 阅读(171) / 评论(0) 分类 英语单词荟萃

Bad weather meant that oil could not be pumped out of the ship the Rena today. The waves were too high. Pumping the oil is slow work because the oil is cold and thick. The pipe from the Rena to the oil barge is nearly 200m long and quite narrow, 7.5c

发表于:2019-02-17 / 阅读(102) / 评论(0) 分类 新西兰英语

Apart from much else, our lively interior created the outgassing that helped to build an atmosphere 不说别的,我们活跃的内部使大量气体喷涌而出,帮助建立了大气层, and provided us with the magnetic field that shields us

发表于:2019-02-25 / 阅读(91) / 评论(0) 分类 万物简史
学英语单词
a zone
accessories for hydraulic controls
account-keeping
albugos
anodic metal
aromatic dialdehyde
Azanin
beltline railway
benzotriazole light stabilizer
bicaste
birnie
Borisovskiy
bring a case to court
California single-leaf pinyon
cirrostratus cloud
Coleonol
colo(u)r fastness to spotting
colonizing period
compression rate
connett
correct to
cross-link density
crossjacks
Dardenne brothers
dialogue management
discoidal
downhole equipment
dynamic strain recording equipment
entrained flow gasification
ethyl xanthogen disulfide
film strength
finger post
fizzlings
fumiferous
Gell-Mann relation
general anxiety scale for children
genus turbatrixes
gogean
Heteracia
hilder
holoparasitic
Ikato
Khlepen'
larabida
lawn bowling
likings
littlewhiteman
local anomaly
lug rim
mavroleon
mercocresol
methyl kinase
Monarch Pass
motion-picture recording
multidigitato-pinnate
nephrectomizes
Neurymenia
neutron energy range
nuclear material safeguards
observal
oral infection
oscillating movement
Osvaldo Cruz
Ottersheim
Parasenecio rubescens
posterior scleral staphyloma
Poupan
PowerShare
property right
rascalliest
re-imburses
reflecting ability
retromandibular process
roller pin formality
Rumilly-lès-Vaudes
Ruminobacter
Sankt Paul im Lavanttal
service mains
shutteer operator
simchat
Sito-philus zeamais Motschulsky
softshell turtle
sponge up
stockyard fever
superchip RAM
sylwester
theory of index numbers
thymine ribonucleoside
tibiotarsal segment
Tokomaru Bay
tonlar
top fluid
Turner's syndrome
unclings
underfly
untripe
urinative
usnea japonica
venting capability
viias
write-in campaign
zhigancao decoction