久久亚洲国产成人影院-久久亚洲国产的中文-久久亚洲国产高清-久久亚洲国产精品-亚洲图片偷拍自拍-亚洲图色视频

您現(xiàn)在的位置: Language Tips> Easy English> Odd Question  
 





 
“干冰”是什么
[ 2007-12-14 17:17 ]

干冰是固態(tài)的二氧化碳,由于干冰的溫度非常低,溫度為攝氏負(fù)78.5度,因此經(jīng)常用于保持物體冷凍或低溫狀態(tài)。因?yàn)樗诨瘯r(shí)是由固態(tài)直接升華為氣態(tài),不會(huì)產(chǎn)生任何水或液體,我們稱它做“干冰”。

"Dry Ice," the trademark name forsolid carbon dioxide, reaches its solid state when cooled liquid carbon dioxide is put under pressure.

Scientists successfully produced the snowy, white solid, which produced temperatures dipping as low as 109 degrees Fahrenheit, and envisioned dozens of practical uses for "Dry Ice." Unfortunately, they had yet to discover how to keep this solid from melting back into its original liquid state.

Fortunately, the solution to the scientists' dilemma, which possibly dawned on them over cocktails at happy hour, lay in the fact that when "Dry Ice" mixes with liquids having very low freezing temperatures, for example alcohol, instead of melting, the solid turns into gas. Because the gas escapes into the air, it packs more refrigeration power than an identical amount of ice made from water.

The primary use for "Dry Ice," both then and today, is to keepperishablesfresh, especially during shipment. Solid carbon dioxide made its debut as the packing material of choice for ice cream.

Today, products such as fish and meat can be shipped thousands of miles, and arrive at their destinations. Eggs can remain fresh indefinitely if refrigerated with solid carbon dioxide, as the primary reason they grow stale is the escape of carbon dioxide from tiny pores in their shells. When enveloped by the vapor from the gas solid carbon dioxide emits, the escape of carbon dioxide from their shells iscancelled out.

Even florists take advantage of the preservative property of "Dry Ice," and can prevent flower buds from opening for up to three days by placing them in a solid carbon dioxide atmosphere. Essentially, "Dry Ice" temporarily freezes the aging process to suit our purposes.

solid carbon dioxide: 固體二氧化碳

perishable: 容易腐爛的東西

cancel out: 抵償

(來(lái)源:coolquiz.com 英語(yǔ)點(diǎn)津 Annabel 編輯)

我想了解更多趣味百科知識(shí)
 
 
相關(guān)文章 Related Stories
 
 
 

本頻道最新推薦

     
  “干冰”是什么
  為什么下雪時(shí)天氣暖
  You are the smartest fish I've ever seen!
  Dog burger
  為什么老了脾氣好

論壇熱貼

     
  開個(gè)題目大家扯:hotel & restaurant
  追求某人
  請(qǐng)教工商年檢如何翻譯
  How to translate “中國(guó)老字號(hào)”into English?
  "港股直通車"怎么翻譯?
  兩免一補(bǔ)怎么說(shuō)?




主站蜘蛛池模板: 日韩三级欧美 | 高清欧美不卡一区二区三区 | 女人夜色黄网在线观看 | 亚洲深夜福利视频 | 尹人成人| 日本在线免费观看视频 | 加勒比毛片 | 日本一区二区三区在线 视频 | 免费观看性欧美毛片 | 精品久久久久久中文字幕 | 手机在线看片国产日韩生活片 | 国产精品日产三级在线观看 | 国产高清免费影视在线观看 | 麻豆一级片 | 久青草免费视频 | 久久久久久久久毛片精品 | 一本色道久久综合亚洲精品 | 老司机成人免费精品视频 | 怡红院在线观看 | 日本无卡码一区二区三区 | 日本a级毛片免费观看 | 草草影院欧美三级日本 | 毛片无码国产 | 国产精品黄网站 | 一本色道久久爱88av | 色妇女影院 | 午夜一区二区福利视频在线 | 男女扒开双腿猛进入免费网站 | 毛片1级 | 一区二区三区在线免费观看视频 | 经典三级在线视频 | 久久精品国产免费看久久精品 | 精品无人区一区二区三区a 精品午夜国产在线观看不卡 | 精品看片 | 九九热精品在线 | 欧美成人爽毛片在线视频 | 国产高清视频在线播放 | 成在线人永久免费播放视频 | 国产亚洲91| 亚洲欧美天堂 | 男人v天堂 |