www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

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 英語點(diǎn)津編輯)

 
英語點(diǎn)津版權(quán)說明:凡注明來源為“英語點(diǎn)津:XXX(署名)”的原創(chuàng)作品,除與中國日?qǐng)?bào)網(wǎng)簽署英語點(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“來源:XXX(非英語點(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)與稿件來源方聯(lián)系,如產(chǎn)生任何問題與本網(wǎng)無關(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)確無誤”如何表達(dá)
英國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
端午節(jié)怎么翻譯?
母親,您在天堂還好嗎?

 

主站蜘蛛池模板: 成人亚洲网 | 成人在线中文字幕 | 92看片淫黄大片看国产片 | 亚洲精品国产综合一线久久 | 狠狠色狠狠色综合久久一 | 亚洲自拍另类 | 亚洲加勒比久久88色综合 | 久久在现| 粉嫩jk制服美女啪啪 | 在线观看一级毛片 | 久久99热只有视精品6国产 | 午夜欧美成人香蕉剧场 | 精品成人在线视频 | 97精品久久久久中文字幕 | 日本免费一区二区三区看片 | 日韩在线视频中文字幕 | 国产亚洲精品成人一区看片 | 亚洲精品专区一区二区三区 | 国产精品久久久久久久hd | 欧美成人片在线 | 久久久精品免费观看 | 精品国产免费人成在线观看 | 成年女人毛片免费视频永久vip | 亚洲成人免费网站 | 男女上下爽无遮挡午夜免费视频 | 一级片在线免费看 | 黄色三级毛片网站 | 精品国产日韩久久亚洲 | 欧美牛逼aa | 一区二区三区中文字幕 | 国产一级免费 | 亚洲综合色一区二区三区另类 | 久久福利资源网站免费看 | 成 人 黄 色 视频 免费观看 | 成人高清视频在线观看 | 国产成人精品午夜 | 亚洲精品一区 | 国产主播福利片在线观看 | 成人一级免费视频 | 在线成人天天鲁夜啪视频 | 欧美久久久久 |