涩涩爱在线撸免费视频,失禁 调教 刺激 哭喊男男,丰满少妇猛烈进入A片99A,自己动粗暴抽插娇喘羞辱

 

Top active volcanic eruption spots

Top active volcanic eruption spots
 
0 CommentsPrint E-mail CNTV, April 28, 2010
Adjust font size:
Pahoehoe Lava, Hawaii Pahoehoe lava flows on Kilauea Volcano in Hawaii Volcanoes National Park. Unlike aa (pronounced “ah ah? lava, pahoehoe flows relatively slowly, allowing an insulating skin to form that keeps the temperature close to 2,190 degrees Fahrenheit (about 1,200 degrees Celsius). Aa lava, on the other hand, moves faster and doesn’t have time to develop a skin, resulting in a cooler flow with a more angular texture.[Steve and Donna O’Meara/CNTV]

Pahoehoe Lava, Hawaii

Pahoehoe lava flows on Kilauea Volcano in Hawaii Volcanoes National Park. Unlike aa (pronounced "ah ah? lava, pahoehoe flows relatively slowly, allowing an insulating skin to form that keeps the temperature close to 2,190 degrees Fahrenheit (about 1,200 degrees Celsius). Aa lava, on the other hand, moves faster and doesn't have time to develop a skin, resulting in a cooler flow with a more angular texture.[Steve and Donna O'Meara/CNTV]



   Previous   1   2   3   4   5   6   Next  


Print E-mail Bookmark and Share

Go to Forum >>0 Comments

No comments.

Add your comments...

  • User Name Required
  • Your Comment
  • Racist, abusive and off-topic comments may be removed by the moderator.
Send your storiesGet more from China.org.cnMobileRSSNewsletter