日韩精品久久一区二区三区_亚洲色图p_亚洲综合在线最大成人_国产中出在线观看_日韩免费_亚洲综合在线一区

您現在的位置: > Language Tips > Easy English > Odd Question  
 





  What is dry ice?
[ 2006-04-11 08:52 ]

"Dry Ice," the trademark name for solid 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 keep perishables fresh, 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 is cancelled 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.

 

note:

solid carbon dioxide: 固體二氧化碳

 

 

 

 

 

 

 

perishable: 容易腐爛的東西

 

 

 

cancel out: 抵償

 
 
 




主站蜘蛛池模板: 亚洲永久中文字幕在线 | 婷婷成人亚洲 | 色网站在线免费观看 | 国产激情久久久久久熟女老人AV | 亚洲免费在线视频 | 天天射天天搞 | 久草香蕉| 色婷婷社区| www.75zzz.com| 91原创视频| 国产日韩欧美一区 | 亚洲日本va在线视频观看 | 色综合久久天天综合观看 | 欧美亚洲高清 | 久久成人18免费网站 | 亚洲三级网 | 精品国产九九 | 日韩黄在线 | 日本高清一区二区三区不卡免费 | 欧洲在线观看 | 午夜久草 | 91精品国产一区二区三区 | 久久亚洲国产高清 | www.一区二区| 色偷偷免费 | 精品久久久久久久久久 | 国产目拍亚洲精品99久久精品 | 久久婷婷色一区二区三区 | 日本又黄又粗暴的gif动态图含羞 | 欧美一区二区精品 | 成年做羞羞免费观看视频网站 | 无人精品乱码一区二区三区 | 亚洲播播播 | 婷婷色中文字幕 | 亚洲国产视频一区 | 欧美一区二区三区久久久 | 久久毛片网站 | 骚av在线| 国产精品资源网站在线观看 | 亚洲精品在线视频观看 | 超碰在线播|