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
电子工程专辑
5 年
干货 | PCB Layout 跳坑指南——PCB走线角度选择到底该不该90°?
现在但凡打开SoC原厂的PCB Layout Guide,都会提及到高速信号的走线的拐角角度问题,都会说高速信号不要以直角走线,要以45度角走线,并且会说走圆弧会比45度拐角更好。 事实是不是这样?PCB走线角度该怎样设置,是走45度好还是走圆弧好?90度直角走线到底行不 ...
当前正在显示可能无法访问的结果。
隐藏无法访问的结果
今日热点
AU Bondi Beach shooting
Brown University shooting
On his cancer treatment
Sherrone Moore charged
Expecting their first child
Crash in San Fernando Valley
US soldiers, civilian killed
Today in history: 1977
Navy on Osprey safety issues
New York may lose $73M?
'Pulp Fiction' actor dies
Unveils health care plan
US invalidates union contract
Trump handles coin toss
Engine failure during takeoff
20 states sue Trump admin
SC measles cases rise
Launches campaign for gov.
‘Miracle on Ice’ team honored
US Admiral Holsey retires
Files for bankruptcy
Says top Hamas leader killed
Wins the Heisman Trophy
Spurs reach NBA Cup final
Arctic air sweeps across US
RU attacks two UKR ports
Belarus frees Nobel winner
Jury orders to pay $40M
Quintanilla Jr. dies at 86
Van Dyke turns 100 years old
反馈