温度防腐作用

Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only withi

发表于:2018-12-01 / 阅读(362) / 评论(0) 分类 新东方背诵文选

By Nancy Steinbach Broadcast: November 19, 2003 This is Phoebe Zimmermann with the VOA Special English Health Report. When scientists want to test the effectiveness of a new drug, they usually divide

发表于:2018-12-15 / 阅读(209) / 评论(0) 分类 VOA2003(下)-环境与健康

The refrigerator temperature is too cold, she said. The vegetables are freezing. Can you turn the temperature up? He said, Sure. It's simple. Let me show you how. Then you can do it yourself. She said, Don't show me how. Just do it. You're so lazy. Y

发表于:2018-12-26 / 阅读(191) / 评论(0) 分类 英文短篇故事(纽约)

Antibiotic or antiseptic drops are the best approach to treating swimmer's ear, according to a new research review. And while oral antibiotics are often prescribed along with ear drops to treat swimmer's ear, this is not necessary, the reviewers say.

发表于:2019-01-07 / 阅读(191) / 评论(0) 分类 英语新闻

Does an ice-cold drink actually taste better than the same beverage at room temperature? Depends on what its taste is: a new study finds that the intensity of some flavors varies with temperature. The work is in the journal Chemosensory Perception. R

发表于:2019-01-08 / 阅读(176) / 评论(0) 分类 Scientific American(五)月

英语短文:Cells and Temperature Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only within a narrow ra

发表于:2019-01-08 / 阅读(268) / 评论(0) 分类 英语小短文

Cold front to drop temperatures in north China BEIJING, Oct. 20 (Xinhua) -- China's meteorological authorities on Saturday forecast strong winds and temperature drops in most regions in the north due to a sweeping cold front. On Saturday and Sunday,

发表于:2019-01-11 / 阅读(234) / 评论(0) 分类 英语新闻

Some bacteria have adapted to super cold environments for millions of years. And scientists have isolated some of the essential genes that allow bacteria to tolerate their harsh living conditionsbecause these same genes might help in the creation of

发表于:2019-01-11 / 阅读(249) / 评论(0) 分类 英语杂谈

地道美语听力播客English as a Second Language Podcast (ESLPod),是一家位于美国加州洛杉矶的英语教育研究机构推出的英文听力会话,于2005年7月23日首播, 主播Dr. Jeff McQuillan为南加州大学的语言学博士

发表于:2019-01-11 / 阅读(206) / 评论(0) 分类 地道美语播客

Study: Cleaning Umbilical Cord Saves Lives Simple use of an inexpensive disinfectant could save hundreds of thousands of newborn lives each year. That's the conclusion of recent studies from South Asia. The umbilical cord is usually cut right after b

发表于:2019-01-14 / 阅读(314) / 评论(0) 分类 VOA标准英语2012年(二月)

Accident 1: A cut hand 事故1:手部割伤 A: Your hand is bleeding. What have you done to it? A:你的手在流血。你做什么了? B: I cut it on that blade. B:我让刀刃割了。 A: I'll get the first aid box. There's some antiseptic cream

发表于:2019-01-14 / 阅读(238) / 评论(0) 分类 职业技术英语口语

ROBERT SIEGEL, HOST: Lindsey Fitzharris' new book is called The Butchering Art. It is not about carving meat for cooking. It's about surgery the way it used to be done. And it's about one surgeon in particular who changed the way it was done - Joseph

发表于:2019-01-16 / 阅读(198) / 评论(0) 分类 2017年NPR美国国家公共电台10月

发表于:2019-02-01 / 阅读(189) / 评论(0) 分类 英文语法词汇

一个句子中难免出现一两个生字。在这种情况下,不必马上查字典,只要根据上下文的关系,就可能猜测生字的意思了。 下面这些例子,值得大家参考: ⒈利用括号内的解释,如: ① The po

发表于:2019-02-05 / 阅读(236) / 评论(0) 分类 英文语法词汇

今天我们要学的词是side effect。 Side effect, 副作用。一项最近民调显示,Most Americans want health reform but fear its potential side effects, 大多数美国人都希望看到医疗改革,但是又担心改革可能带来的副

发表于:2019-02-05 / 阅读(203) / 评论(0) 分类 英语每日一词

As the development of the society, people want to conquer the environment, they use the high technology to change the environment, when people are satisfied with what they did to the nature, the nature is starting to teach human being a lesson. In th

发表于:2019-02-06 / 阅读(211) / 评论(0) 分类 英语作文

Food Poisoning (1) Dialog one: commis: How do microbes (bacteria) get in food (2) ? chef: Mostly from your hands (3) . commis: I should always wash them. chef: Yes. Everything in the kitchen should be sanitized (4) . commis: Right, Ill use an antisep

发表于:2019-02-11 / 阅读(226) / 评论(0) 分类 英文语法词汇

今天我们要学的词是side effect。 Side effect, 副作用。一项最近民调显示,Most Americans want health reform but fear its potential side effects, 大多数美国人都希望看到医疗改革,但是又担心改革可能带来的副

发表于:2019-02-13 / 阅读(257) / 评论(0) 分类 英语单词荟萃

VATICAN CITY, Feb.28 (Xinhua) -- The resignation of Pope Benedict XVI came into effect at 8 pm local time (1900 GMT) on Thursday, who had left the Vatican by helicopter for the papal vacation retreat in south Rome earlier in the afternoon. The pope h

发表于:2019-02-17 / 阅读(229) / 评论(0) 分类 英语新闻

饶舌:Tech N9NE - Check Yo Temperature 相关介绍 :2008年9月是Tech N9NE事业的一个里程碑,他的双CD专辑《Killer》突破100万张的销售记录。2009年4月7日,Rock The Bells 2009 Festival邀请他来做演出,今年10月的

发表于:2019-02-18 / 阅读(206) / 评论(0) 分类 节奏布鲁斯
学英语单词
A lot Much water has flown beneath the bridges since.
aai
absolute quantity
an army of
apoplectic cicatrix
articulation of knee
assimilation chamber
ASTO
automatic boiler control
ballatry
Barton-upon-Humber
Bawku
be plus
blastulae
bogoriensis
British plain spirits
chaff-cutters
clarification liquor
clean bed
climate proof
Commiphora myrrha
comparative gerontology
compensated density log
complex covariance
contra-reflexure
coupling box
CTH-1314
cue inserter
cumidino
cutter-loader bed
d-co
DEHFT
deteriorating condition
do somebody right
Dodge-type jaw crusher
earnings-driven
empty the trash
enclave sector
ether anesthesicus
flap-seat
fluidized-bed iron making
foraminulum
forevacuum trap
fronted
fruit beverage
full coat
gonic
great-grandparent
green fallows
habrik
Habsburg
high fashion
immunogenetica
infiltration analgesia
job-training
Kochenga
Laramie Peak
left-hand subtree
let something pass
lifework
meetly
Muggensturm
Möng Wi
Nelson method
neuroploca
Nienhagen
nixtamalizing
nuruddin
odd-numbered
on the scratch
order-disorder phase transition
past endurance
pathfind
phase 4
point gamma
privileged slave program operating
project reporting
protein cleavage
pull a sad face
quarrellings
refined wool fat
rendering autoclave
revenue of a governmental unit
Shujing
solids-not-fat
spuggy
Strymon melinus
subdisciplinary
surdine
system improvement time
tape threader
thickness coefficient
Tolseron
total sag
transition metal chemistry
tubular axis
unensouled
var. gl. parotis accessoria
Vic.
wind crust
YSKV