un. 单汽缸蒸汽机
[网络] 单缸试验装置

Airplane Engines In 1945, a new type of airplane engine was invented. It was much lighter and more powerful than earlier engines, and enabled warplanes to fly faster and higher than ever. This type of engine was called the jet engine because it below

发表于:2018-11-30 / 阅读(278) / 评论(0) 分类 英语专业四级考试指南

美国动力公司研发提升五成油效对置活塞二冲程发动机 This little engine looks like it has only three pistons, but in fact, it has six, sharing only three cylinders. 这台小身材引擎看起来只有3个活塞,但事实上却有

发表于:2018-12-16 / 阅读(186) / 评论(0) 分类 VOA标准英语2016年(三月)

Section A Directions:In this section,you will hear 8 short conversations and 2 long conversations.At the end of each conversation,one or more questions will be asked about what was said.Both the conversation and the questions will be spoken only once

发表于:2018-12-30 / 阅读(149) / 评论(0) 分类 英语六级听力练习集锦

2 What are the two speakers doing? [A] Walking down a hill [B] Climbing stairs [C] Discussing a trip

发表于:2018-12-30 / 阅读(183) / 评论(0) 分类 听听测测

3 Where are the two speakers? [A] In a restaurant [B] On a farm [C] At the man's home

发表于:2018-12-30 / 阅读(191) / 评论(0) 分类 听听测测

[ti:王迈迈英语B级考试全真模拟试题与详解test8 听力] [ar:王迈迈] [al:王迈迈英语B级] [by:wmmenglish.com] [00:00.41]王迈迈英语B级考试全真模拟试题与详解test8 [00:00.52]test8 [00:03.14]Part I [00:05.32]Section A [00:07.62]Directions: [00:09.80]This sectio

发表于:2018-12-31 / 阅读(252) / 评论(0) 分类 王迈迈英语AB级考试讲解

What Do Octane Numbers Mean? At the gas pump, you have a choice of octane numbers. 87? 93? Whats the difference? To explain octane numbers, lets take an imaginative leap into the internal combustion engine of a car. Inside the cylinders are combustio

发表于:2018-12-31 / 阅读(172) / 评论(0) 分类 英语听力文摘 English Digest

NB: This is not a word for word transcript Yvonne: Hello, I'm Yvonne Archer, this is 6 Minute English and thanks to Alice for joining me today. Alice: Hi Yvonne. Yvonne: Hello Alice. Now recently, an artefact - a very old piece of art - which many hi

发表于:2019-01-07 / 阅读(213) / 评论(0) 分类 六分钟英语

NASA Successfully Tests New Rocket Engine NASA最强火箭测试成功 火星之旅指日可待 The American space agency successfully tested a powerful new rocket engine this week in the desert of northern Utah. The rocket booster is meant to take a

发表于:2019-01-12 / 阅读(324) / 评论(0) 分类 2016年VOA慢速英语(七)月

One of the world's foremost analysts of North Korea's ballistic missile programs says reports of missile engine testing at a newly revealed facility appear credible. As VOA Seoul Correspondent Kurt Achin reports, North Korea is apparently able to te

发表于:2019-01-12 / 阅读(170) / 评论(0) 分类 VOA标准英语2008年(九月)

This Internal Combustion Engine is 50% More Efficient 新型内燃机效率提高50% Internal combustion engines in cars may be on their way out, but experts agree it will take a few decades before electric-powered vehicles become dominant. Meanwhile

发表于:2019-01-14 / 阅读(203) / 评论(0) 分类 VOA标准英语2016年(三月)

If you've gone shopping for a car lately, you might have noticed that fuel economythe number of miles per gallonis creeping up. One reason is a more efficient type of fuel injection, called gas direct injection. Its a feature of half the new cars sol

发表于:2019-01-20 / 阅读(166) / 评论(0) 分类 2016年Scientific American(八)月

雅思听力机经中出现的词组往往有限,同学们没有必要拿着厚厚的词汇书发愁,很多时候,利用听力阅读中的题目就能搞定很多单词。下面雅思频道就为同学们整理剑10听力中出现的词汇汇总,

发表于:2019-02-02 / 阅读(146) / 评论(0) 分类 雅思英语

One of the world's foremost analysts of North Korea's ballistic missile programs says reports of missile engine testing at a newly revealed facility appear credible. North Korea is apparently able to test its missiles under more realistic conditions

发表于:2019-02-14 / 阅读(177) / 评论(0) 分类 VOA双语新闻 2008年9月

Website uses an algorithm to predict when you will find The One (or whether you're destined to stay single). 有一个网站能利用某种算法来预测:你什么时候才能找到另一半(或者你注定只能单身一辈子了)。 It's a d

发表于:2019-02-17 / 阅读(155) / 评论(0) 分类 阅读空间

下周五要交论文,这周二要交工作报告,下个月1号要考试了好像我们的生活中总是有这样那样的期限。于是大家都努力赶在期限前完成该做的事。可是人都是有惰性的,就难免有拖拖拉拉的毛

发表于:2019-02-19 / 阅读(169) / 评论(0) 分类 英语口语

North Korea today hailed its test of a new intermediate-range missile and claimed that it can now hit U.S. bases in the Pacific with a nuclear warhead. State TV broadcast footage of Sunday's launch. The missile traveled nearly 500 miles, but analysts

发表于:2019-02-25 / 阅读(163) / 评论(0) 分类 PBS访谈社会系列

you're looking pretty weird in full makeup only for this one single time you tell me I'm your curse and you are mine and I can see you I still feel you and if you jump then I will too and even in this old tiny picture these are your values not mine b

发表于:2019-03-02 / 阅读(216) / 评论(0) 分类 美国乡村音乐

Traffic at our twelve oclock, 10 miles, climbing. Should we expedite our descent to cross altitudes? 601. 冲突飞机在我们12点钟方位,10海里处,正在上升。我们应该加速下降以穿越高度吗? Unable, TCAS RA. 602. 不能,

发表于:2019-03-10 / 阅读(303) / 评论(0) 分类 飞行员英语900句

下周五要交论文,这周二要交工作报告,下个月1号要考试了好像我们的生活中总是有这样那样的期限。于是大家都努力赶在期限前完成该做的事。可是人都是有惰性的,就难免有拖拖拉拉的毛

发表于:2019-03-11 / 阅读(247) / 评论(0) 分类 实用英语
学英语单词
abyssal zone
Acariformes
AChRAb
aer (applicant's environmental report)
also-rans
anti-trusts
armature band
attendez
B'erythromycin
bannister shaft
barbados gooseberries
bleachability
bone marrow transplant
Bowlby
BS-RNase
candida stellatoidea
cardiostenosis
carriage of timber deck cargo
clap valve
coach class
coffret
colliding with
components of covariance
coneheaded bolt
consolidated interlocking
cottoner
counterattackers
crystal-tetrode mixer
curcio
directly coupled
dishable
education at a glance
elevator differential angle
endomorphism of module
evergreen
fairydoms
ferrous dense material
filing-cabinet
for anything I know
frock flick
fusiform ray
Gandhism
genus Pachycephala
hammings
hydrogen value
hydrogeophyte
indaba
indented bar
indicator button
intermediate crown
jejunely
judicial errors
katholysis
lacinella
Lactuca sativa crispa
Leiden jar
life-form dominance
livered thickened oil
liverwursts
load limiting resistor
Loumbi
magnetic nodal point
mariposa
miles per gallons
Nares Abyssal Plain
neither do i
netonian fluid
nocturnal pollutions
non-magnetic pressure plate
nonhumanoid
number of extra length
obsidianite
organotransition metal chemistry
ouglie
pampas cat
Pauchi
permanent steel bulkhead
piece by piece
pre-pone
primary spoilage
priority class of traffic
pseudofolk
PSTV
quadruplex telegraphy
quasi-reflexive Banach space
Quinqueloculina
ritsuko
screwed shank tool
spurn away
square meals
stunt-men
sunken tree
tanneke
theoxyline
tonsolith
transformation induced plasticity
tuning-curve
upper frame rail
voltage regulation characteristic
wickstromol
women's-rights
YOOHOO