音标:[bæktiәriә'klɔ(:)rәfil] ;
n. [生化]细菌叶绿素
n a substance in photosensitive bacteria that is related to but different from chlorophyll of higher plants
词型变化:名词复数形式 : bacteriochlorophylls

SCIENCE IN THE NEWS - Reforms at NIH / Tobacco Smoke a Danger to Children / A New Way to Add Iron to the Diet By Cynthia Kirk and Jill Moss Broadcast: Tuesday, February 15, 2005 VOICE ONE: This is SCI

发表于:2018-12-07 / 阅读(168) / 评论(0) 分类 科技之光

This is the VOA Special English Development Report. World No Tobacco Day is celebrated each thirty-first of May. The observance is meant to bring attention to the growing use of tobacco and its deadly effects. The World Health Assembly established th

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SCIENCE IN THE NEWS - A Taxi at 12,000 Meters? New Mini Jets Are About to Shake Up World of Air TravelBy Brianna Blake, Jerilyn Watson and Nancy Steinbach Broadcast: Tuesday, October 31, 2006 VOICE ON

发表于:2019-01-02 / 阅读(181) / 评论(0) 分类 2006年慢速英语(十)月

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By Mike O'Sullivan Los Angeles 27 March 2006 A museum in Los Angeles is bringing to life the people who lived in northern Europe thousands of years ago. Well-preserved bodies and artifacts from fog-sh

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Oh, no! Denzel thought. Whered THAT come from? He was looking at a big red dry stain that was on the carport where he always parked his car. There was only one thing to do: check his power steering fluid and his transmission fluid, both of which were

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Welcome to THIS IS AMERICA in VOA Special English. Im Doug Johnson. VOICE TWO: And Im Barbara Klein. This week on our program, we take you to the summer movies. This year's crop includes vampires, talking toys, an Iron Man and, of course, love. (MUSI

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By Scott Bobb Johannesburg 27 March 2008 As Zimbabweans prepare to go to the polls Saturday, pre-election activity is being closely watched by an estimated 3 million Zimbabweans living in neighboring South Africa. Although they cannot vote, these exi

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Autumn Leaves Show Their True Colors As days grow shorter and nights grow cooler in Boulder, Colorado, the green leaves of summer have been putting on party colors. On cottonwood trees and aspens, theyre golden yellow coins. On Mapleton Avenue, the m

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RACHEL MARTIN, HOST: And now some words you don't often hear together - all-girl, teenage, Indonesian metal band. NPR's Ashley Westerman has this profile. ASHLEY WESTERMAN, BYLINE: The band's called Voice of Baceprot. Baceprot means noisy in the girl

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AUDIE CORNISH, HOST: Need a distraction from the news? ARI SHAPIRO, HOST: We have one. CORNISH: It's a reminder of the good things in life that are free. SHAPIRO: Another commercial for Nicer Living. (SOUNDBITE OF ARCHIVED RECORDING) UNIDENTIFIED MAN

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Voice 1 Welcome to Spotlight. Im Liz Waid. Voice 2 And Im Adam Navis. Spotlight uses a special English method of broadcasting. It is easier for people to understand - no matter where in the world they live. Voice 1 In the last fifteen years, farmers

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RIO DE JANEIRO, Dec. 7 (Xinhua) -- The son of former Brazil great Romario has signed his first professional contract with Brazilian third-tier side Brasiliense. Romarinho, 19, joined the Brasilia-based outfit on Thursday, less than 24 hours after qui

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雅思阅读考试备考中很重要的一个部分就是对雅思阅读文章题材的熟悉和掌握。 雅思阅读考试的文章通常分为生物、地理和社会科学三类。雅思文章的出处有很多,其中最实用的、便于积累背

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Because chlorophyll is the chemical responsible for making leaves green, its absence allows chemicals such as carotinoids, xanthophylls, and others to give leaves their orange, yellow, and various other colors. As trees stop producing chlorophyll, th

发表于:2019-02-15 / 阅读(176) / 评论(0) 分类 英语时差8,16
学英语单词
acceptable level of reliability
accommodation heating
Action in the Carriage of Goods by Road
Adok
avinar
bath life
be made of ice
benthivore
blackheart cherries
body twist
Bouguer reduction
capillary consolidation
casting box for curved stereos
cetaceans
Chorispora tenella
cielab colour difference
classification of ships
commencement of adventure
corylaceaes
cotyledonary node
cramp somebody's style
criminal prosecutions
cyst of submaxillary gland
daily periodic behavior
demicellization
dry rigor
early closing
Er Rachidia
expiration
fan total pressure
finishing streak
fort grahame
front light tower
genotype-environmentinteraction
globular-fibrous
gracileness
grangerize
gtor-ma
half-body
hard cushion vegetation
helluva
hemorrhagic focus
Henry's law
housing of the open top
Hymm
impulse stage
intwine
Kitan
Kwangp'ogang
language identification
lateral central nucles
ll.b
lobotomies
market separation
microhmmeter
mismeetings
moisture equilibrium of grain
moving electron
nanoampere beam current
native product processing machinery
nephrolysis
no load engine surge
orbicular granite
over our head
paternity right
Pawlyn
pearl divers
person insuring
prominent moths
push-back operation
put somone in the bounce
quantum yield of photosynthesis
quesion
rbm interlock
Relyovo(Rel'ovo)
resonant value
rock melon
Sachs's disease
saunce
scada
senior second engineer
side frame bottom oblique chord
slurry-mud contamination
somatizations
some other time
spokeswomen
start legal proceedings
state tax liens
Stropkov
submarine pipeline system
superior branches
thans
thermal expansion factor
typewriter output routine
Ubombo
unfinished work
waddywood
wavecom
weight sensor
wictor
willow asters
zodiacal light bridge