时间:2019-01-30 作者:英语课 分类:农业与发展


英语课

DEVELOPMENT REPORT - Adobe 1
By Gary Garriott


Broadcast: Monday, July 19, 2004


This is Robert Cohen with the VOA Special English Development Report.


These days, stories about adobe are usually about Adobe, the California company that makes computer products. But this report is about adobe the traditional building material made of soil.


Adobe is shaped into bricks that can be placed on top of each other. They are used as a low cost way of making houses. They can substitute for other building materials such as wood and steel.


Adobe is soil that contains at least forty percent clay. In its purest form, clay can be shaped and stretched and used to make objects. Clay becomes very hard when it is put in a fire or a special oven.


Adobe becomes a sticky mud when it is mixed with water. Liquid adobe mixture can be poured into containers called molds. This way the adobe ca be shaped into bricks of the desired size. Adobe bricks must be completely dried before they are used. That is necessary so that the walls of a building will not shrink or break.


Too much water can make adobe weak. Sometimes other materials are added to the adobe mixture. These materials help keep the water in correct balance with the soil. This will help the adobe resist changes in the weather and humidity.


One material that is commonly added to strengthen the adobe is straw. Straw is the dried stem part of plants such as wheat, millet 2 and sorghum 3. Straw is especially popular in places where the clay content of the soil is high. Other materials such as lime and cement can be added to strengthen the adobe. About once a year, houses made from adobe should be given a layer of mud. This "paint" job helps keep the adobe strong.


Adobe can take a long time to dry and become hard. So the bricks should be made in hot dry weather. If the weather is right, the bricks should dry in seven to ten days. People who work with adobe must experiment. They must find the right combination of soil mix, water content and drying methods.


Many people around the world have found that adobe is a low cost way to make a house or farm buildings. You can get more information about building with adobe from the organization Volunteers in Technical Assistance, or VITA. VITA is on the Internet at www.vita.org.


This VOA Special English Development Report was written by Gary Garriott. This is Robert Cohen.



n.泥砖,土坯,美国Adobe公司
  • They live in an adobe house.他们住在一间土坯屋里。
  • Adobe bricks must drived dried completely before are used.土坯砖块使用前一定要完全干燥。
n.小米,谷子
  • Millet is cultivated in the middle or lower reaches of the Yellow River.在黄河中下游地区,人们种植谷子。
  • The high quality millet flour was obtained through wet milling.采用湿磨法获得了高品质的小米粉。
n.高粱属的植物,高粱糖浆,甜得发腻的东西
  • We can grow sorghum or maize on this plot.这块地可以种高粱或玉米。
  • They made sorghum into pig feed.他们把高粱做成了猪饲料。
学英语单词
activator atom
Aldanispirifer
aldehyde-lyases
Altinyaka
aprm downscale alarm
bacteria microscopic examining instruments set
band groove
be in a take the pet
bisexual hybrid
bourden
brush contact encoder
cartoonings
celling voltage
charging dynamo
cilioposterocapsular fibers
comest
costabile
debouncing
declaration of deadweight tonnage of cargo
deflection defousing
durrance
dusicyon gymnocercus
electromagnetic coupling effect
endocarpic
engaging arm
eprom reliability
esteban
eunotogramma laevis
facilement
Fire Detection Alarm Systems
fixed exchange rates
flood and waterlogging control
gas plant
gaseous diffusion method
grid zone identification note
guest night
hard error rate
hot-pressed aluminium nitride
hydraulic check cylinder
internal strain
Jolfā
kiono-
kirkburtons
kohner
laev-
lay down his arms
lent segregation
libercarelessian
linguistic context
low voltage insulator
man-engine
management of design
Manet
manure drill
micromanometry
mirandina corticola
morphophonics
mosstone
mysores
off-axis reflector
orthomolybdate
oven dried
over-sob
paremoremo
pasture stock
postpolitical
privately-runs
puccinia flavipes
quadratic hill-climbing method
renavigating
Rixford
rosindol
S19V
samsonite
scana
shear edge
Sinaiticus codex
soap compound
spatial chemistry
stabilizing resistance
super-continent
superpixels
teases out
tenogenic
the woman
tinctural value
to play
Tokounou
tpc (taiwan power company)
transverse seam
true firs
ultrasonic wave-type fire detector
UNDOF
uromyces fabae(pers.)de bary
user-survey analysis
versicolors
village rules
volunteer program
wetting water
William Marcy Tweed
wind assisted ship
Zhdanovshchina