91茄子

Pisa

Published on
二月 26, 1999
Last updated
五月 27, 2015

Underground excavation work has begun to try to reduce the tilt on the Leaning Tower of Pisa. Michele Jamiolkowski, a geotechnics professor at Turin Polytechnic, is heading the expert team which includes John Burland, professor of soil engineering at Imperial College, London.

请先注册再继续

为何要注册?

  • 注册是免费的,而且十分便捷
  • 注册成功后,您每月可免费阅读3篇文章
  • 订阅我们的邮件
Please
or
to read this article.
ADVERTISEMENT