[化] 合成固定氮

初级英语听力(新版) Lesson17 What's the postage on these letters to Thailand, please? I'll have to check. Do you need anything else? Yes. A three pence stamp, please. That'll be eighty-five pence in all. I wish you wouldn't have your TV so lou

发表于:2018-12-01 / 阅读(201) / 评论(0) 分类 初级英语听力新版

This is Scientific Americans 60-Second Science. Im Cynthia Graber. This will just take a minute. The Chesapeake Bay could get helped by a new antipollution expert: farmed oysters. For decades, the Chesapeake has been plagued by excess nutrients, such

发表于:2018-12-24 / 阅读(116) / 评论(0) 分类 Scientific American(一)月

AGRICULTURE REPORT - Bird Flu: Composting the Remains of Farm BirdsBy Mario Ritter Broadcast: Tuesday, February 28, 2006 I'm Steve Ember with the VOA Special English Agriculture Report. Farmers usuall

发表于:2019-01-02 / 阅读(104) / 评论(0) 分类 2006年慢速英语(二)月

AGRICULTURE REPORT - Legumes: Good for People and SoilBy Bob Bowen Broadcast: Tuesday, February 21, 2006 I'm Steve Ember with the VOA Special English Agriculture Report. Many different kinds of plants

发表于:2019-01-02 / 阅读(98) / 评论(0) 分类 2006年慢速英语(二)月

Broadcast: June 4, 2003 By Paul Thompson VOICE ONE: This is Ray Freeman. VOICE TWO: And this is Steve Ember with the VOA Special English program EXPLORATIONS. Today, we tell about how astronauts prepa

发表于:2019-01-02 / 阅读(129) / 评论(0) 分类 VOA2003(上)-科技导航

This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute?. [Spray sound.] Killing bugs? No. [Spray sound.] Deodorizing the bathroom? No. [Spray sound.] Checking for explosives, yes. Because chemists at the University of Califor

发表于:2019-01-08 / 阅读(170) / 评论(0) 分类 Scientific American(九)月

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. If youve ever wondered where the Earth came from, the answer, it seems, is blowin in the windthe solar wind. Or so say scientists who, after examining sola

发表于:2019-01-08 / 阅读(151) / 评论(0) 分类 Scientific American(七)月

Next Step After Carbon: Knowing Your Nitrogen Footprint This is the VOA Special English Agriculture Report. 这里是美国之音慢速英语农业报道。 A carbon footprint is the amount of carbon dioxide pollution that we produce as a result of o

发表于:2019-01-10 / 阅读(99) / 评论(0) 分类 2011年VOA慢速英语(四)月

This is the VOA Special English Agriculture Report. Sorghum farmers in eastern Uganda, working with scientists, have tested some lower-cost ways to improve their soil. Little rain and poor soil fertility are problems in that area, as in other parts

发表于:2019-01-11 / 阅读(128) / 评论(0) 分类 VOA慢速英语2007年(六)月

AGRICULTURE REPORT - Study Points to Risk in Common Method of Enriching Soil By Jerilyn Watson / Broadcast: Mon, 12 Nov 2007 16:00:00 UTC This is the VOA Special English Agriculture Report. For more than half a century, many farmers worldwide have a

发表于:2019-01-11 / 阅读(134) / 评论(0) 分类 VOA慢速英语2007年(十一)月

For generations, people in Indianapolis, Indiana, have been going to the Roof. But it's not on their housetop, or even outside. The Roof, as locals call it, is the Indiana Roof Ballroom. It's an enchanting dreamland on the top floor of an old theater

发表于:2019-01-13 / 阅读(105) / 评论(0) 分类 VOA标准英语2010年(二月)

Fukushima Plant Operator: Nitrogen Pumping Operation Going Well A plan to inject nitrogen into the containment vessel around reactor 1 at the Fukushima Daiichi power plant appears to be working, the plant owner said Thursday. Higher pressure levels h

发表于:2019-01-14 / 阅读(125) / 评论(0) 分类 VOA标准英语2011年(四月)

Looking to lead a more eco-friendly lifestyle? You could start by cutting back on meat. A new nitrogen footprint calculator shows you the impact your diet has on the environment. You may have heard of the concept of a carbon footprint. That's how muc

发表于:2019-01-14 / 阅读(85) / 评论(0) 分类 VOA标准英语2011年(三月)

托福考试(TOEFL)是国际上最有影响力,使用最广泛的的英语水平测试之一。托福除了作为美国主流学校入学所需的标准化考试,申请签证和工作的过程中也会有需要托福成绩的机会,所以不少

发表于:2019-01-18 / 阅读(105) / 评论(0) 分类 托福英语

The geology of the planet 地球的地质情况 Welcome to the Anthropocene 欢迎来到人类纪 Humans have changed the way the world works. Now they have to change the way they think about it, too 人类改变了世界运行方式,现在,人类不

发表于:2019-01-26 / 阅读(150) / 评论(0) 分类 经济学人综合

AGRICULTURE REPORT — November 26, 2002: Corn, Part 1 By Mario Ritter This is the VOA Special English Agriculture Report. Corn is an important crop in many parts of the world. However, some people ar

发表于:2019-01-30 / 阅读(133) / 评论(0) 分类 农业与发展

By Mil Arcega Washington, DC 04 May 2006 watch Ripple Effect of Oil report The latest data on consumer spending shows the U.S. economy continues to expand at a healthy pace. But some economists fear o

发表于:2019-01-31 / 阅读(170) / 评论(0) 分类 2006年VOA标准英语(五月)

GRE阅读复备考之类比思维。考生在做gre阅读复习过程中也可以运用类比的思维解题。在GRE阅读中绝对不少见,也就是常说的类比题。主要说下述哪一选项所述现象和原文第N行的说法比较相像

发表于:2019-02-17 / 阅读(109) / 评论(0) 分类 GRE英语

1.Above all:最重要的是,most important of all Above all, theyll have to discover how much nitrogen it possesses since nitrogen is4/5 of the air breathe.(2002-1) 2.Account for:解释。说明 How do you account for the truth? 3.After

发表于:2019-02-18 / 阅读(90) / 评论(0) 分类 大学四六级阅读

SYDNEY, Aug. 5 (Xinhua) -- The Western Australian Government announced on Friday that 14 new substances linked to the manufacture of the synthetic drug Kronic would be banned from Friday midnight. The State Mental Health Minister Helen Morton told th

发表于:2019-02-19 / 阅读(128) / 评论(0) 分类 英语新闻
学英语单词
3H-dihydroalprenolol
Adah
adenoid cystic carcinoma of bronchus
adiabatic theorem
amaryllids
arthen
articular facet
Aspergillaceae
automatic document classification
automatic mutual-assistance vessel rescue
avenous
bachelor's wife
base fertilizer
Biddle, France
bilinears
bioisosterism
black spearfish
blade-point
bonspiels
branch pipe
butter pat
Cayenne pepper grains
central kitchen
changing weights
chapmans
chili dogs
Chinese arrowhead
complans
copersucar
courtesy fart
covered over
cragginesses
cream slice
cyco
danger line
dawycks
dipnictide
disquietful
ecquaintances
epulosis
fishskin
formal model of system behavior
galvanic battery
gasteiger
gauging hatch
Gharsa, Chott el
glass cannons
gross gain
groupset
hand tongs
Herne, James A.
hogreeve
Hoi Loc
Holmgren's test
howsit
Hypericum formosanum
imaginary hypersphere
incremental servodrive
irradiation service
jurrjens
KCC
litsea rubescens var. yunnanensis lec.
litzendraft wire
makovicka
melas
mesoxalic acid
Moustierian
multi jack
N-Hydroxyacetamide
nerve biopsy
onion-skins
permanent moon base
portfolio investor
precise measurement
prophesieth
Public Data Network
quotation in foreign currency
radial shakes
rail corrugation
remote release
remotum(far)
retrogressive analysis for bridge erection
rosin products
rump electron
sight-reader
Smilax chapaensis
spiral pattern of change
steam air humidification system
straightaway stands
streamline function
Strophinos
suspension of flying
Tisri
transrepress
tuzla (donja tuzla)
ultrasonic sensing equipment
uncages
vinous flavo(u)r
Virolahti
visual picture
warbling carrier system
xams