混凝土外加剂

AGRICULTURE REPORT - Jojoba: Not Your Usual Oilseed CropBy Mario Ritter Broadcast: Mon, 3 Jul 2006 16:00:00 UTC I'm Shep O'Neal with the VOA Special English Agriculture Report. Jojoba plants We have a

发表于:2018-12-07 / 阅读(211) / 评论(0) 分类 2006年慢速英语(七)月

Researchers: Recycled Concrete's Time Has Come SOUTH BEND, INDIANA Recycling in the construction industry has become big business. It's easy to find new life for everything from old windows to wood beams. But until now, concrete the most widely used

发表于:2018-12-08 / 阅读(193) / 评论(0) 分类 VOA标准英语2016年(八月)

Concrete is one of the most widely used materials on the planet. And this consumption comes with a heavy ecological price. Rouzbeh Shahsavari, a materials scientist at Rice University. Around 5 to 10 percent of total CO2 emissions comes from concrete

发表于:2018-12-18 / 阅读(220) / 评论(0) 分类 2017年Scientific American(一)月

Pesticide Additive Could Be One Culprit in Bee Deaths 农药添加剂是蜜蜂死亡的一大诱因 Springtime is flower season. And that includes some 90 million almond trees in California. It's the largest pollination event in the U.S.and beekeeper

发表于:2018-12-24 / 阅读(185) / 评论(0) 分类 2017年Scientific American(二)月

Grammar Girl here. Todays topic is cement versus concrete. Guest writer Sal Glynn writes: Accuracy is important. You might think concrete and cement are interchangeable, but you'll quickly find that you're mistaken when some guy at Home Depot rolls h

发表于:2019-01-02 / 阅读(295) / 评论(0) 分类 英语语法 Grammar Girl

And that's the difference between problems that are additive, like CO2, 这个就是可添加性问题,像二氧化碳问题, which we go slowly up and then we tip, and problems that are depletive, in which we lose what we have, which oscillate, 慢

发表于:2019-01-03 / 阅读(205) / 评论(0) 分类 TED演讲科技篇

Conquer Fear To conquer ones fears ,one must see past them .To fear is natural ; to see past them is heroic. Fear is normal additive to life ,symbolizing that there are new ,sometimes extraordinary things to come ,to face .To be able to see these thi

发表于:2019-01-08 / 阅读(161) / 评论(0) 分类 英语美文

1. The head of the Transportation Security Administration is admitting that new airport pat-downs are more invasive than what most are used to. But it doesn't sound like they're going away. He tells a Senate committee that the procedures are needed t

发表于:2019-01-11 / 阅读(237) / 评论(0) 分类 美联社新闻一分钟2010(十一月)

Volunteers Help Revive LA's Concrete River Thousands of volunteers turned out on a recent weekend to remove the trash that has been deposited by winter rain storms. The Los Angeles River was lined with concrete in the late 1930s and 1940s, after year

发表于:2019-01-14 / 阅读(215) / 评论(0) 分类 VOA标准英语2013年(五月)

今天我们要学的词是concrete。 Concrete具体的,实质性的。美中战略与经济对话星期二结束。美联社报道说,The United States and China ended two days of high-level talks with few concrete results, 美中结束了为期两

发表于:2019-01-16 / 阅读(189) / 评论(0) 分类 英语单词荟萃

DEVELOPMENT REPORT - Long-Life Concrete Bridges By Jill Moss Broadcast: Monday, June 07, 2004 This is Robert Cohen with the VOA Special English Development Report. Each year, road accidents kill a mil

发表于:2019-01-16 / 阅读(237) / 评论(0) 分类 农业与发展

今天我们要学的词是concrete。 Concrete具体的,实质性的。美中战略与经济对话星期二结束。美联社报道说,The United States and China ended two days of high-level talks with few concrete results, 美中结束了为期两

发表于:2019-01-16 / 阅读(200) / 评论(0) 分类 英语每日一词

Last year in the US, they helped Amazon prepare and ship all the products required for Cyber Monday, 去年在美国,机器人帮助亚马逊发货,以应对网络星期一带来的 the annual peak of online retail. 年度线上零售消费高峰。

发表于:2019-01-18 / 阅读(193) / 评论(0) 分类 TED演讲国际问题篇

The bar owner was upset. His best customer was in the hospital. He had a head injury. What happened? the owners wife asked. He said, He drank too much. When he went outside, he fell down. His head hit the sidewalk. Now he's in the hospital. This isn'

发表于:2019-01-22 / 阅读(234) / 评论(0) 分类 英文短篇故事(纽约)

Cleaning and sorting plastic made out of multiple polymers can be relatively expensive, 清理和将多种聚合物制成的塑料进行分类的成本相对昂贵, especially if it is used to make low value products such as packaging. 尤其是这些

发表于:2019-01-26 / 阅读(223) / 评论(0) 分类 经济学人科技系列

Science and Technology Three-dimensional printing An image of the future 科技 3D印刷 印刷未来 One of the biggest manufacturers in the world gives 3D printing a go 世界龙头机器制造商用3D印刷术进行了一次格外成功的应用 U

发表于:2019-01-26 / 阅读(225) / 评论(0) 分类 经济学人科技系列

At this rate, scientists will have to come up with a better description for the tomato than mere 'superfood'. While it has long been credited with cutting cholesterol and preventing some cancers, the fruit now appears to have two more healthgiving be

发表于:2019-02-06 / 阅读(188) / 评论(0) 分类 阅读空间

Science and technology 科学技术 Bespoke pets 定制宠物 Just press print 只需按一下打印键 It will soon be possible to design and build household animals to order 按需定制宠物很快将成为现实 I could have sworn I ordered this

发表于:2019-02-16 / 阅读(252) / 评论(0) 分类 经济学人科技系列

The 2015 list of the greatest emerging technologies was recently published by Bernard Meyerson, chief innovation officer of IBM and chair of the World Economic Forums Meta-Council on Emerging Technologies. 最近IBM的首席创新官兼世界经济论坛

发表于:2019-02-17 / 阅读(211) / 评论(0) 分类 阅读空间

每一个孩子都是可爱的小天使,但不是每一个天使都能够幸福地飞翔。寂静的墓地里,小小的石碑上,冰冷的石头塑成一副没有表情的石像。那是被剥夺生命权利的小小精灵,永远地长眠于地

发表于:2019-02-18 / 阅读(199) / 评论(0) 分类 美国乡村音乐
学英语单词
-nerved
Active Risk
alumin(i)um bronze
Aruma
ash pit
aspartyl-
Bakool, Gobolka
ball vein
beesh
biharite
blow money on...
British invasion
centesimal notation
closed circuit television system
colotomy
compression characteristic
conchectomy
Coonawarra
CRDF
crenelated
crystal structure determination
daily bunker
damask violet
defraudful
delages
delayed signal
Dorlisheim
drawback chuck
eiug
engine starting control
EOF
farme
first-stage (sampling) unit
floor buffer
genoproteomic
genus Gerris
graciella
grassland for grazing
Hainsbach
harowitz
Huarmey
ice lolly freezer
inflammatory goiter
infrared tracking axis
ironomyiid
isobutylphenyl propionic acids
kasbas
Kizil
labour cost sheet
Lamoricière
Leonovka
low friction bearing
mabbutt
magnetical stepping motor
megavilt
Mehemett
meningomyocele
metaboracite
microwave integrated crcuits (mic)
monachosorum maximowiczii
nebulium
nitro-carbonic process
nrz modulation
osteoarthritis of spine
photofading
pocketed oil
polygamma-function
preshock
prettied
prodigals
proscriptionist
put ... back
qualltative
randominity
redundancy pay
removable hard disk
riksdaler
rock tar
roller bitt
Rully
season tiles
servantly
slatted elevator
SPA-S-232
stankeivich
synchronized operation
take a scunner against
taped up
tartaric-resistant
terminal very high frequency omnidirectional radio beacon
the rubaiyat of omar khayyam
Tigre, Cerro del
toboggin
Townsend coefficient
transition metals
transplantation of knee joint
tummy-bugs
unmanned tank
Wamac
welsh-mediums
widdiful
wrong reaction