搜索优化
English
全部
Copilot
图片
视频
地图
资讯
购物
更多
航班
旅游
酒店
搜索
笔记本
Top stories
Sports
U.S.
Local
World
Science
Technology
Entertainment
Business
More
Politics
过去 7 天
时间不限
过去 1 小时
过去 24 小时
过去 30 天
按相关度排序
按时间排序
6 天
单结晶体管(UJT)
单结晶体管是一种固态触发器件,可用于各种电路和应用,从触发晶闸管和Triac到用于相位控制电路的锯齿波发生器。UJT的负电阻特性也使其非常有用,可以用作简单的弛豫振荡器。
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
Doubles planned tariffs
Says he is buying a Tesla
‘Harry Potter’ actor dies
Officials' clearances revoked
132-yr-old shipwreck found
Drone attack on Moscow
60 universities under probe
Ex-NFL player sentenced
Bags fly free no more
Judge blocks deportation
Antibiotic resistance study
Judge declares mistrial
Polls open in Greenland
Launches run for governor
Majority breathes dirty air?
US job openings rose
On bid to block climate suits
To launch podcast
NASA's strategic shakeup
Official says she was fired
Suspended 20 games
Long Island brush fires cause
NJ school bus crash
Disney wins copyright trial
Tornado touches down in FL
Gilchrist enters MI gov. race
Vaughn confirms HGH use
CFPB official testifies
Electricity surcharge on US
NY fires 2K+ prison guards
反馈