【化学】磷酸氢铵钠(= sodium ammonium phosphate)

06 食盐与血压的关系 DATE=2-22-01 TITLE=SCIENCE REPORT - Salt and Blood (1)Pressure BYLINE=Jerilyn Watson (Start at 1'00

发表于:2018-12-07 / 阅读(124) / 评论(0) 分类 科技之光

This is the VOA Special English Health Report. Even a small reduction in salt in the diet can be a big help to the heart. A new study used a computer model to predict how just three grams less a day would affect heart disease in the United States. Wh

发表于:2018-12-07 / 阅读(122) / 评论(0) 分类 2010年慢速英语(一)月

The little splints of wood which we call matches are made out of deal or pine wood which has been soaked in melted paraffin wax to make it burn more easily. 这种被我们称之为火柴的薄木片由欧洲赤松(松树)制成, 在液体的石蜡

发表于:2018-12-18 / 阅读(82) / 评论(0) 分类 英国学生科学读本

Have you ever had a problem getting a match to light? If so, you might be using the wrong type of match. There are actually two different types of matches: safety matches and strike-anywhere matches. 以前你点燃火柴时有没有点不着的时候呢

发表于:2018-12-18 / 阅读(78) / 评论(0) 分类 2018年NPR美国国家公共电台2月

Where once only salt miners traveled, today, tourists track through tunnels hundreds of feet deep into the caverns of Zipaquir mountain in Colombia. Their destination, a Catholic cathedral carved from the mineral deposits of the old mine. More than 1

发表于:2018-12-30 / 阅读(157) / 评论(0) 分类 国家地理2007年

This is Scientific American's 60-Second Science, I'm Christopher Intagliata. Got a minute? Life on earth requires six basic ingredientscarbon, hydrogen, nitrogen, oxygen, sulfur and phosphorus. Those six elements are the building blocks for DNA and R

发表于:2019-01-08 / 阅读(110) / 评论(0) 分类 Scientific American(十二)月

Once, there lived a peddler. The peddler sold all sorts of goods.sturdy shoes for the farmers and pretty trinkets for their sweethearts, warm, woolly shawls to keep the women warm and sweet, sticky toffees for the children to munch on their way back

发表于:2019-01-08 / 阅读(108) / 评论(0) 分类 英语小短文

This is the VOA Special English Agriculture Report. Hogs at an Ohio farm Research shows that waste from pigs that are fed a special kind of corn may help a farmer's crops. And it also may help the environment. Any farmer who raises swine knows that

发表于:2019-01-11 / 阅读(130) / 评论(0) 分类 VOA慢速英语2008年(八)月

By Peter Fedynsky Moscow 18 July 2007 Officials in Ukraine are assessing the damage of a train crash in western Ukraine that sent huge clouds of burning phosphorus billowing into the air. The accident, which took place Monday, is raising health conce

发表于:2019-01-12 / 阅读(114) / 评论(0) 分类 2007年VOA标准英语(七月)

我们今天要学的习惯用语都包括这样一个关键词汇,salt。 Salt这个词大家都熟,是盐。人们在生活中少不了它,一切活细胞也都需要它,人们意识到盐的重要性已经有好几个世纪了,所以由s

发表于:2019-01-14 / 阅读(142) / 评论(0) 分类 美国习惯用语

MARY LOUISE KELLY, HOST: Summertime brings algae blooms to many parts of the country - those mats of bright green organisms that can blanket waterways. In places like Florida's Lake Okeechobee, the blooms hurt tourism. They kill fish. They threaten w

发表于:2019-01-17 / 阅读(102) / 评论(0) 分类 2018年NPR美国国家公共电台7月

AGRICULTURE REPORT -May 21, 2002: Irrigation and Salt By George Grow This is the VOA Special English AGRICULTURE REPORT. Irrigation is the watering of land by other than natural methods. Irrigation pr

发表于:2019-01-18 / 阅读(112) / 评论(0) 分类 农业与发展

The commercial potential for the stuffwhich soon became known as phosphorus, from Greek and Latin roots meaning light bearingwas not lost on eager businesspeople, but the difficulties of manufacture made it too costly to exploit. An ounce of phosphor

发表于:2019-01-29 / 阅读(96) / 评论(0) 分类 万物简史

Low-salt,low-protein diet can prevent kidney stonesA diet low in salt and meat can dramatically reduce the risk of kidney stones,according to an Italian study that could spell the end for the low-calcium diet that doctors have been recommen

发表于:2019-01-31 / 阅读(118) / 评论(0) 分类 阅读空间

有些美国人干一行、怨一行,讨厌自己的工作,也有更多的人对他们的职业还算满意,然而却不愿意实话直说。这样一来他们都会使用一些带有贬意的俚语来描述自己的工作。我们今天要讲的

发表于:2019-02-02 / 阅读(128) / 评论(0) 分类 美国习惯用语

This is the VOA Special English Health Report. Even a small reduction in salt in the diet can be a big help to the heart. A new study used a computer model to predict how just three grams less a day would affect heart disease in the United States. Th

发表于:2019-02-04 / 阅读(87) / 评论(0) 分类 英语杂谈

Salt I WROTE THE OBITUARY for the OBITUARIES editor. Her name was Lois Andrews. Breast cancer. She was only forty-five. One in eight women get breast cancer, an epidemic. Loiss parents had died years earlier. Dads cigarettes kept their promises. Moms

发表于:2019-02-16 / 阅读(153) / 评论(0) 分类 英文短篇小说

从柴米油盐说起 中国人用柴米油盐酱醋茶概括了生活所必须的点滴琐事,所以,一说起柴米油盐,说汉语的人头脑中第一印象就是过日子。 其实不只是中国人,全人类又何尝不是如此呢?不同

发表于:2019-02-17 / 阅读(95) / 评论(0) 分类 英文语法词汇

Matches Striking matches, on this Moment of Science. Have you ever had a problem getting a match to light? If so, you might be using the wrong type of match. There are actually two different types of matches: safety matches and strike-anywhere matche

发表于:2019-02-26 / 阅读(100) / 评论(0) 分类 英语听力文摘 English Digest

舞林争霸洛杉矶海选17岁正太配乐Pollen and Salt 《舞林争霸》在洛杉矶的海选高手辈出,其中17岁的Nathen人小艺高,完美的旋转和出色的表演征服 了观众也征服了评委。他舞蹈的配乐是Pollen and

发表于:2019-03-02 / 阅读(147) / 评论(0) 分类 影视英文歌曲
学英语单词
aconte
administrative control
administrative state
aerobic spore forming bacilli
alarm processing system
altens
antitrust policy
Ballinamult
bank price of gold
be-lieve
bill mauldins
Bjarg
Broad R.
call bell system
catching up with
ch'u yuan
Cicagna
cocurrent line
collodionized
Come outside!
compartment coach
consistency controller
current-free field
cut eyes
Digitaria
echinoderms
everette
experient
family day care
fault-avoidance
Federal Security Bureau
felsitoid
filament potentiometer
fluorinated hydrocarbon propellant
flycatching warbler
Frank Skinner
fruit and vegetable acid
gametonucleus
genus Contopus
give a tumble
golden touch
Goulburn River
grating platform
greyhaired
handle bar end nut
headspace net
hourglass worm
i.s.s
Illyrian language
indicator sign
labelling of chemicals
laurice
leafleteer
Leciňena
light control device
lining deformation
lubrication points
lumber door
magnetoelastic generator
malacocephalus laevis
mannikin (europe)
mcfeeley
mckrieth
Mihun Dao
mini-meat bird
mock orange
mongoing
myrmekite antiperthite
nanobattery
non-intervention will
not worth a an hour's purchase
omara
oxalic acid monoureide
palm cockatoo
parentheticals
pince
plmm
pneumonoultramicroscopicsilicovolcanoconioses
pre investment studies
prepared lard
principle of intuition
racemosae & coptidis tablets
radiotelex letter
reusing industrial effluent
rule of cost or market
semicircular conductor
shirring thread
source system
spider nevuss
split core
subcutaneously
sumptions
superabounded
supramarginal plate
surgical seam
swonas
t1/2
thermal range
Ubuntu Server Edition
underrun a hose
unwielded
wavelength dispersive x-ray fluorescence spectrometer