在线国产一区二区_成人黄色片在线观看_国产成人免费_日韩精品免费在线视频_亚洲精品美女久久_欧美一级免费在线观看

您現(xiàn)在的位置: Language Tips> Audio & Video> Special Speed News  
   
 





 
Building with adobe (no computer required)
[ 2009-01-13 10:05 ]

Download

People must experiment to find the right combination of soil mix, water content and drying methods.

This is the VOA Special English Development Report.

This week in our report we are going to talk about adobe. No, not the information technology company in California, Adobe Systems. We mean the traditional building product made of soil and other materials. Adobe is shaped into bricks that are laid one on top of another and used as a low cost way to build walls and houses.

Building with adobe (no computer required)

Adobe is soil that contains at least 40 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 called a kiln.

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 can be shaped into bricks of the desired size.

Adobe bricks must be dried completely before they are used. This 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 to strengthen it. 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 and sorghum. 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 so-called 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 7 to 10 days.

Many people around the world have found that adobe is a good way to make houses or farm buildings. But people who work with adobe must experiment. They must find the right combination of soil mix, water content and drying methods.

More information about adobe can be ordered from EnterpriseWorks/VITA, an anti-poverty group in Washington, D.C. The Web site is enterpriseworks.org. Click on News & Resources, then the link for Publications.

And that's the VOA Special English Development Report. Transcripts, MP3s and podcasts of our reports are at voaspecialenglish.com. I'm Steve Ember.

 

(Source: VOA 英語(yǔ)點(diǎn)津編輯)

 
英語(yǔ)點(diǎn)津版權(quán)說(shuō)明:凡注明來(lái)源為“英語(yǔ)點(diǎn)津:XXX(署名)”的原創(chuàng)作品,除與中國(guó)日?qǐng)?bào)網(wǎng)簽署英語(yǔ)點(diǎn)津內(nèi)容授權(quán)協(xié)議的網(wǎng)站外,其他任何網(wǎng)站或單位未經(jīng)允許不得非法盜鏈、轉(zhuǎn)載和使用,違者必究。如需使用,請(qǐng)與010-84883631聯(lián)系;凡本網(wǎng)注明“來(lái)源:XXX(非英語(yǔ)點(diǎn)津)”的作品,均轉(zhuǎn)載自其它媒體,目的在于傳播更多信息,其他媒體如需轉(zhuǎn)載,請(qǐng)與稿件來(lái)源方聯(lián)系,如產(chǎn)生任何問(wèn)題與本網(wǎng)無(wú)關(guān);本網(wǎng)所發(fā)布的歌曲、電影片段,版權(quán)歸原作者所有,僅供學(xué)習(xí)與研究,如果侵權(quán),請(qǐng)?zhí)峁┌鏅?quán)證明,以便盡快刪除。
相關(guān)文章 Related Story
 
 
 
本頻道最新推薦
 
Walking in the US first lady's shoes
“準(zhǔn)確無(wú)誤”如何表達(dá)
英國(guó)新晉超女蘇珊大媽改頭換面
豬流感 swine flu
你有l(wèi)ottery mentality嗎
翻吧推薦
 
論壇熱貼
 
別亂扔垃圾。怎么譯這個(gè)亂字呀?
橘子,橙子用英文怎么區(qū)分?
看Gossip Girl學(xué)英語(yǔ)
端午節(jié)怎么翻譯?
母親,您在天堂還好嗎?

 

主站蜘蛛池模板: 亚洲欧美日韩在线 | 久久国产区 | 欧美不卡二区 | 国产高清久久久 | 久草免费在线视频 | 亚洲视频区 | 在线一区二区三区 | 天天躁日日躁狠狠躁av麻豆 | 欧美日韩国产在线观看 | 中文字幕日本在线观看 | 国产区久久 | hd国产人妖ts另类视频 | 国产午夜精品久久久 | 精品国产乱码久久久久久88av | 亚洲黄色性视频 | 午夜免费视频观看 | 精品国产一区二区三区久久 | 日韩一区二区三区视频 | 国产免费成人在线视频 | 自拍视频免费 | 日韩欧美国产成人一区二区 | 91免费版在线观看 | 亚洲永久精品www | 久久9久 | 日韩在线视频一区二区三区 | 欧美亚洲综合久久 | 国产高清视频 | 国产一级视频 | 欧美综合影院 | 国产精品久久久久久 | 97人人爽人人澡人人精品 | 欧美一区二区精品 | 国产成人精品一区二区视频免费 | 人善交video另类hd国产片 | 日韩在线播放网址 | 国产视频网 | 国产精品久久毛片 | 欧美大片免费高清观看 | 成人免费看片 | 亚洲一区二区av | 中文字幕综合在线分类 |