English
全部
搜索
图片
视频
地图
资讯
Copilot
更多
购物
航班
旅游
笔记本
Top stories
Sports
U.S.
Local
World
Science
Technology
Entertainment
Business
More
Politics
时间不限
过去 1 小时
过去 24 小时
过去 7 天
过去 30 天
最新
最佳匹配
澎湃新闻
3 年
Light | 世界最大碳化硅非球面反射镜的高精度制造
中科院长春光机所先进光学系统制造研究团队经过近20年技术攻关,攻克了大口径碳化硅镜坯制备、加工工艺、检测方法、改性镀膜等核心关键技术,突破了高结构刚度复杂曲面碳化硅光学反射镜先进制造技术,建立了4m量级大口径碳化硅非球面反射镜全链路集成 ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果
今日热点
SCOTUS halts SNAP pay
Senate passes funding bill
Taiwan evacuates thousands
Trump on H-1B visas
Launches bid for Congress
Cleto Escobedo III dies
AU's top court blocks Russia
Cal State soccer player dies
Former NBA star dies at 70
Trump pardons husband
Pulls two gay dating apps
Files lawsuit against LSU
Hit with power outage
Recalls all products
Exits game with injury
FIDE files complaint
Brown pleads not guilty
New All-Star Game format
Undergoes knee surgery
'Mellon Blue' diamond auction
G7 ministers meet in Canada
US carrier in Latin America
Sally Kirkland dies
To strengthen cooperation
Halts intelligence sharing
KS county to pay $3M
DOJ to probe Berkeley protests
Faces 2,000+ year sentence
反馈