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
最佳匹配
最新
生物通
1月
一种基于宽带蓝光Na-β"-Al?O?:Eu2?, Ce3?磷光体的白光LED(WLED),该磷光 ...
宽谱带Na-β"-Al?O?:Eu2?,0.08Ce3?荧光材料通过Eu2?双位点占据实现470nm和500nm双峰发射(FWHM 140nm),热稳定性优异(95.1%@448K),用于CIE 1931色坐标(0.32,0.35)的全光谱WLED。 发光二极管(LED)的发明和应用将照明领域带入了一个新时代。与传统光源相比,LED灯体积更小 ...
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
On Christmas Day strike
French film icon dies
Massive crash in Japan
Mamdani responds to Musk
Oklahoma man charged
Canada pledges $2.5B more
Mexican train derailment
Texans beat Chargers
Breaks music hiatus
MetroCard era ends
Stabbing in Suriname
Former IBM CEO dies
N. Korea tests cruise missile
Suspect reveals motive?
Two helicopters crash in NJ
9 arrested in Italy
Mom pleads not guilty
On Minnesota fraud scheme
Polls open in Guinea
Two ski patrollers injured
Takes World Cup GS
Earthquake hits Taiwan
California drops lawsuit
Mormon leader dies
Placed on injured reserve
Dad rescues daughter
S. Africa building collapse
NY to require warning labels
Suspect reportedly dead
On Ukraine-Russia peace deal
Fire in Portland's Old Port
Guatemala bus accident
Syria protests
Plans to close FBI HQ
2 police officers injured
Filing $1M lawsuit
Africa rejects recognition
Myanmar election begins
Michigan hires Whittingham
Sued by another actor
反馈