弯曲的弹性应变能

STEVE INSKEEP, HOST: Here's something people do every day that many of us apparently do wrong - bending over, you know, to pick things up or put things down or even just to sit down. Now, a group of scientists who study bending say Americans are doin

发表于:2018-12-02 / 阅读(109) / 评论(0) 分类 2018年NPR美国国家公共电台2月

Mary wanted to be a nurse when she left school, but in the meanwhile, she joined the Red Cross and had some limited training. She was tought that, in case of an accident, and there was painterful in her town, she should give first aid at once and the

发表于:2018-12-02 / 阅读(150) / 评论(0) 分类 英语复述材料-第三辑

The key difference of course is that a sunspot's 最关键的不同点在于太阳黑子 an awful lot bigger and so the total energy, 大得多,所以太阳磁场内 or the amount of energy in the magnetic field 所含的总能量大得惊人 on th

发表于:2018-12-07 / 阅读(111) / 评论(0) 分类 太阳科普

WHO: Balanced Approach for New Bird Flu Virus Strain In 2011, scientists discovered they had created a highly contagious and deadly form of H5N1 commonly called avian or bird flu. When the discovery was announced, debate erupted over whether the rese

发表于:2018-12-08 / 阅读(110) / 评论(0) 分类 VOA标准英语2011年(十二月)

2017 、 边缘处理 edging 2018 、 链条 chain 2019 、 链传动 chaindrive 2020 、 链轮 chainwheel 2021 、 链轮齿 sprocket 2022 、 镗孔 boring 2023 、 錾 chisel 2024 、 关锁装置

发表于:2018-12-08 / 阅读(62) / 评论(0) 分类 英文名句短语

The flu epidemic intensified a few week ago, but it continued to worsen with widespread outbreaks being reported in every state except Florida. NBC's Robert Bazell reports. And there's new information tonight about this year's flu epidemic and why i

发表于:2018-12-11 / 阅读(91) / 评论(0) 分类 万花筒2008年

DAVID GREENE, HOST: And we're going to spend some time now in China's far northwestern region, Xinjiang, which is four times the size of California. It's home to a Muslim minority group called the Uighurs. They have had this tense relationship with C

发表于:2018-12-17 / 阅读(69) / 评论(0) 分类 2017年NPR美国国家公共电台9月

Topic1-Rating your doctor A new guideline document from the national government, concerning a new doctor-evaluating system said that patients' post-treating review for doctors would in future affect the doctors career development. Won't such reviews

发表于:2018-12-25 / 阅读(67) / 评论(0) 分类 英语角-圆桌会议

今天我们要学的词是 strain. strain 的意思是压力,负担。Tijuana could feel the strain as migrant shelters there already are at or near capacity. 墨西哥的蒂华纳可能 会感受到那里已经人满为患的移民避难所的压力

发表于:2018-12-27 / 阅读(67) / 评论(0) 分类 英语单词荟萃

今天我们要学的词是 strain. strain 的意思是压力,费力,使足力气。 In China, female pilots strain to hold up half the sky although they account for only 1.3 percent of all the pilot, one of the lowest proportion in the world. 在中

发表于:2018-12-30 / 阅读(64) / 评论(0) 分类 英语单词荟萃

北京奥运28大项 参与,竞争,分享,进步 Swimming 游泳 BACKSTROKE 仰泳 Prior to the starting signal, the swimmers shall line up in the water facing the starting end, with both hands holding the starting grips. Standing in or on the gutter or bending th

发表于:2018-12-30 / 阅读(253) / 评论(0) 分类 奥运28大项比赛

spring goeth all in white robert bridges spring goeth all in white, crowned with milk-white may; in fleecy flocks of light, o'er heaven the white clouds stray; white butterflies in the air; white daisies prank the ground; the cherry and hoary pear, s

发表于:2018-12-31 / 阅读(221) / 评论(0) 分类 有声杂志阅读

The pilot and the passenger got into the plane. It was a small plane. It had one engine. It was an old plane. The pilot started the engine. Are you okay? he asked the passenger. She said she was okay. They were flying to an island. The island was onl

发表于:2019-01-04 / 阅读(63) / 评论(0) 分类 简单慢速英语阅读

By Al Pessin Washington 11 January 2008 The top U.S. military officer says he would like to be able to send 3,000 Marines to Afghanistan, as regional commanders have requested. But he says senior leaders are concerned about the impact the deployment

发表于:2019-01-13 / 阅读(98) / 评论(0) 分类 VOA标准英语2008年(一月)

A gentleman who had traveled in Europe, relates that he one day visited the hospital of Berlin, 一位绅士曾去欧洲旅行,有一天,他去参观柏林一家医院。 where he saw a man whose exterior was very striking. 在医院里,他遇见

发表于:2019-01-17 / 阅读(74) / 评论(0) 分类 美国语文第五册

请看相关报道: Wang Lijun, Chongqing's former vice-mayor and police chief, has been charged with bending the law for selfish ends, defection, abuse of power and bribe-taking by the Chengdu City People's Procuratorate. 重庆市原副市长、公

发表于:2019-02-09 / 阅读(77) / 评论(0) 分类 英文语法词汇

Children of the future age, Reading this indignant page, Know that in a former time Love, sweet love, was thought a crime. In the age of gold, Free from winter's cold, Youth and maiden bright, To the holy light, Naked in the sunny beams delight. Once

发表于:2019-02-18 / 阅读(115) / 评论(0) 分类 阅读空间

Let me not to the marriage of true minds 呵,我绝不让两颗真心遇到障碍 Admit impediments. Love is not love 难成百年之好。爱不是真爱, Which alters when it alteration finds, 如果对方转弯自己立刻转向, Or bends wi

发表于:2019-02-24 / 阅读(131) / 评论(0) 分类 莎士比亚十四行诗全集

第三部分 你见过那棵树吗 My neighbor Mrs. Gargan first told me about it. Have you seen the tree? she asked as I was sitting in the backyard enjoying the October twilight. 关于那棵树,最初是我的邻居加根太太告诉我的。你见

发表于:2019-02-25 / 阅读(82) / 评论(0) 分类 双语有声阅读

第一、迷你对话 A: Do you know Mark? 你认识马克吗? B: Yeah! He is a nice guy. He is very helpful and always bends over backward to help those who are in need of help. 认识,他是好样的。他总是乐于助人,帮助那些需要帮

发表于:2019-03-05 / 阅读(106) / 评论(0) 分类 迷你对话学地道口语
学英语单词
acetate butyrate rayon
Adenophora latifolia Fisch.
advocacy planning
aqui-
asymmetrical step function
atp (adenosine triphosphate)
Bamar
bell apple
bipolar 8-zero substitution
blamablely
boat neck,boat neckline
Broz
Canowindra
capable fault
cash forecast
cash-call
clevis mounting
cohesive
combined material
common metal
Conophytum
convallarin
cutwork embroidery
cyclic economic crisis
demethylrifampicine
descansos
devaporizer
dognaped
double-reduction steam turbine installation
durangites
DVD-rewritable
ecological backlash
electropolishing
eletrification instruction
empire-builder
factory-adjusted control
feed water heater
Flogal
front roller shaft
full-range transmission
got on one's feet
Grangeria
hemusite
Hudd
hystonin
IIR filter
impervious
indifferentiated
iodotubercidin
jumper spring
K2SO4
lap about
larinks
laybarge
lead one a merry chase
lead-on
life-situation
long live
maleylurea
manganic phosphate
maynard-smith
metal-oxide humidity sensor
Mikmak
multichanger
narrow band of channel
non-subsidy principle
nondistructive cursor
outgoingness
paint leaf
Palma, R.da
phenylpropionate
pinboard
prevents mistakes
quintile
reconciliation room
red elm
redox titrant
reduplicates
rheological model
safe guard
scintigram
scleragogy
scotobacteria
setting movement
setting-needle
slag conditioning
slowplaying
software requirements specification
special pig iron
steal someone's thunder
stramenopile
submarine landform
swarming
tag boat
tiaa-cref
unyielding foundation
uromodulin
valve bucket
within reach of
work strain
writing-ups
zoomorphizing