搜索优化
English
全部
搜索
Copilot
图片
视频
地图
资讯
更多
购物
航班
旅游
酒店
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
资讯
中国科学院
3 年
研究建立激光方解石U-Pb定年技术
方解石可以在多种地质环境中形成。方解石U-Pb年代学在诸多地学领域具有较大应用前景,如古气候、沉积学、成岩作用、断裂时代、成矿过程以及油气运移等方面。早期方解石U-Pb定年主要基于同位素稀释法(ID),然后采用热电离质谱(TIMS)或多接收电感耦合 ...
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
Tariffs back on for now
Feds probe impersonator
Jailed for selling daughter
Deaf Americans sue Trump
DOJ cuts ABA judicial vetting
National Spelling Bee winner
Unveils new supercomputer
Prosecution rests its case
Ex-NYPD commissioner dies
Canada wildfires spread
ICE leadership overhaul
Court declares mistrial
Saharan dust heads for FL
Garcia eyes Oversight role
Brand pleads not guilty
Paul Ingrassia to lead OSC
Signs AI deal with Amazon
Sale reaches 2,500 strikeouts
To run for US Senate
To challenge Graham
SCOTUS narrows NEPA
Submits reorganization plan
Powell meets with Trump
US scholar leaves Thailand
Foreign student ban halted
Announce new partnership
Weekly jobless claims rise
Ex-banker sentenced
Beef stew recall
Harrison Ruffin Tyler dies
MLB announces investment
Washington park shooting
Backs oil railroad expansion
US govt. employee charged
SEC dismisses Binance suit
反馈