螺距公差(螺纹);节距公差(齿轮)

Exercise 1-1: Rubber Band Practice with Nonsense Syllables Take a rubber band and hold it with your two thumbs. Every time you want to stress a word by changing pitch, pull on the rubber band. Stretch it out gently, don't jerk it sharply. Make a loop

发表于:2018-12-03 / 阅读(59) / 评论(0) 分类 2015年ESL之商务英语

In this Business English Podcast, were going to look at delivering an elevator pitch. A sales pitch is a presentation designed to introduce a product or service in order to convince people to buy it. An elevator pitch is a very short presentation des

发表于:2018-12-05 / 阅读(223) / 评论(0) 分类 商务英语演讲课

Now, the VOA Learning English program, Words and Their Stories. On this program, we tell about common expressions in American English and explain how to use them. Today we talk about expressions involving Los Angeles, California. Los Angeles is the b

发表于:2018-12-07 / 阅读(145) / 评论(0) 分类 2017年VOA慢速英语(二)月

Why would a U.S. Government agency specializing in administering civilian foreign aid and development assistance, concern itself with religious freedom in the countries where it works? At USAID, we see freedom of worship as an essential element in ou

发表于:2018-12-16 / 阅读(72) / 评论(0) 分类 VOA标准英语2018年(八月)

As a child, the commentator went door to door with his mother to share the tenets of the Jehovah's Witnesses. The experience led to his belief that tolerance is the foundation of freedom and liberty Welcome to This I Believe, an NPR series presentin

发表于:2018-12-19 / 阅读(62) / 评论(0) 分类 2007年NPR美国国家公共电台

Idiom: Make a pitch ( make a proposal ) Hit the book: Veterinarian Drowning Scary Yell Labrador Retriever Kangaroo Sanctuary

发表于:2018-12-27 / 阅读(107) / 评论(0) 分类 趣味青春英语

[00:00.00]In Paris ,they bought many souvenirs. [00:04.74]Then they took a train to Berlin, [00:07.21]the capital of Germany. [00:09.39]They visitd many places, [00:11.37]including the famous Brandenburg Gate. [00:14.82]The last country on their trip

发表于:2018-12-29 / 阅读(160) / 评论(0) 分类 北师大版初中英语七年级下

Can you name those notes? Probably notperhaps one in 10,000 speakers of European languages has perfect pitch, the ability to recognize a note without having heard any reference note first. But theres a much better chance you could successfully name

发表于:2019-01-02 / 阅读(106) / 评论(0) 分类 60秒科学

By Elizabeth Lee Washington 23 September 2009 Libyan leader Moammar Gadhafi addresses the general debate of the 64th session of the U.N. General Assembly, in New York, 23 Sep 2009 Libyan leader is in New York and spoke at the United Nations General

发表于:2019-01-13 / 阅读(52) / 评论(0) 分类 VOA标准英语2009年(九月)

Egyptian Islamist Calls for Tolerance of Coptic Christians Violence between Egypt's Coptic Christians and conservative Muslims has led to calls for tolerance from some unlikely sources. The allegiance of the men gathered outside a mosque in central A

发表于:2019-01-14 / 阅读(111) / 评论(0) 分类 VOA标准英语2011年(五月)

【俚语】 pitch in 一起帮忙,作出贡献 最常见得意思是一起帮忙,做出贡献(to join in and help someone with something). 注意:pitch in还有其他的意思: 1.分担共同担负的费用;捐献(某物);(以某物)支援:

发表于:2019-01-17 / 阅读(71) / 评论(0) 分类 英语俚语天天说

今天我们要学的词是zero tolerance。 Zero tolerance, 零忍耐,就是绝不姑息迁就的意思。中国游泳选手欧阳鲲鹏因为药检被查出使用合成类固醇,被罚终身禁赛。 Chinese officials say it shows that a 'zero-

发表于:2019-01-25 / 阅读(61) / 评论(0) 分类 英语每日一词

BEIJING, Jan. 5 (Xinhua) -- For the first time, China has fined overseas companies for price-fixing on the mainland, which is a strong signal that the country will not tolerate foreign cartels any more and is committed to maintaining market disciplin

发表于:2019-01-25 / 阅读(180) / 评论(0) 分类 英语新闻

今天我们要学的词是zero tolerance。 Zero tolerance, 零忍耐,就是绝不姑息迁就的意思。中国游泳选手欧阳鲲鹏因为药检被查出使用合成类固醇,被罚终身禁赛。 Chinese officials say it shows that a 'zero-

发表于:2019-01-25 / 阅读(54) / 评论(0) 分类 英语单词荟萃

We might think perfect pitch is an innate talent. Well, a study in the American Journal of Human Genetics is providing some evidence for that. Perfect pitch, aka absolute pitch, is the rare ability to name or recreate musical notes like A or middle

发表于:2019-01-30 / 阅读(113) / 评论(0) 分类 60秒科学

RIO DE JANEIRO, Aug. 22 (Xinhua) -- Former Brazil international striker Adriano admits his return to Flamengo is his last chance to revive his stalled career. Adriano, who has played just nine games in the past two years, was signed by his former clu

发表于:2019-02-05 / 阅读(118) / 评论(0) 分类 英语新闻

今天我们要学的词是pitch。Pitch可以是推销的意思,既可以作名词也可以作动词。At the World Economic Forum in Davos, Russia's Prime Minister Dmitry Medvedev made a strong pitch for foreign investment in Russia. 在达沃斯世

发表于:2019-02-06 / 阅读(64) / 评论(0) 分类 英语单词荟萃

今天我们要学的词是all star。 All star全明星。All star game全明星赛。The 80th Major League Baseball All-star Game will be played on Tuesday night, 美国职业棒球大联盟第80届全明星赛星期二晚上举行。 Tickets for t

发表于:2019-02-07 / 阅读(65) / 评论(0) 分类 英语每日一词

You're standing face-to-face with a professional in your industry who can help you advance your career. This is your chance to wow this person with a strong handshake, bright smile and direct eye contact, followed by a witty comment that initiates a

发表于:2019-02-07 / 阅读(68) / 评论(0) 分类 英语口语

今天介绍的俚语是pitch in,pitch in是什么意思呢?最常见得意思是一起帮忙,做出贡献(to join in and help someone with something). 例句: If you could pitch in a little we'd be finished quicker. 如果你能帮忙一下,

发表于:2019-02-09 / 阅读(95) / 评论(0) 分类 美国俚语
学英语单词
acetylene regulator valve
acute ear
addisonism
Banera
be with sb
brown as a berry
Bruneianness
Burdach's columns
cardinal princilpe
carnivorans
certifying
characteristic norm
Chekmagush
chloroguanine
Chugach Is.
coin die
colour-blind film
consulting teachers
conventional systems analysis and design
crein
crucible lining
cup-cone fracture
cystolith
data-link switching plus
derrick hoop
disc circle
dissecting cellulitis of the scalp
distance between twin trawl
dotes
double-entry method
eavesdroppers
emplastrum belladonnae
extra-base hit
extranuclear heredity
figure-of-eightsuture
financially secure
finickinesses
flaming asshole,flaming fruitbar
flash grenade
flask separator
Flumadon
frictional loss
gland packing leakage
gondola song
Gouaké
group call
Holzbach
horizontal-vertical deflection coil
hurricane bows
huskiness
idiothermous animals
indileucin
INFM
iynosine
Jud.
ketoses bodies
Langmuir wave
light-shutter tube
malarious
message member
mfgb
mid-flap
Middelburg
Millridge
mouse algorithm
mute
nemn
neocerebellar agenesis
one-off payment
optimum interference fit
permanent lining
phaged(a)ena
phase area law
phenoxybenzamine hydrochloride
portable hydraulic centre-shaft rolling machine
POTS
power-delivery
price-lists
programmable frequency synthesizer
puller
quality retention rating
radioactive-wastes
range spread
redistributed cost
regenerative loop
releated functions
rub(bing) stone
seideman
service context
shadowy figure
shoshone-paiute
stiffenings
street appeal
styringomyia nipponensis
tech stock
tensile stress relaxation
transuranium element
uncharioted
unexhibitionistic
ventilator pipe
voltage clamp
woodscrew