Laser equipment is displayed at the Optics Valley of 皇冠体育app International Optoelectronic Exposition, in Wuhan, Central 皇冠体育app's Hubei province, Nov 6, 2014.[Photo/Xinhua]
. All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to 皇冠体育app Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online Registration Number:
