[计] 程序总线

program bus (程序总线)： 类似于预览总线。它也通过一系列开关来操作，其中每一个被分配到特殊的输入设备(特效发生器、路由切换器等等。

 节目总线

这条将选定视频源直接送到播出 线的总线叫做节目总线(program bus) 合成总线  如果现在想把两路视频源合在一起(如淡人淡 出)，那是否还要再加两条总线和一个逐渐将 甲画面转变成乙画面的推杆?

Also, this helps smooth out bus contention issues — when the bus is full, the program can process the extra buffers rather than wait for the bus to free up.

另外，这有助于缓解总线冲突问题——当总线繁忙时，程序可以处理额外的缓冲区，而不是等待总线空闲下来。

Johnson said there would be a substantial program in the next few years to produce a "cleaner, greener" bus for his city.

约翰逊称，未来几年将实施一项大规模计划，生产“更清洁、更环保”的公交车。

The San Francisco Bay Area's News Station KRON 4 focused its news program "People Behaving Badly" on those crowding a bus door in Chinatown.

美国旧金山湾区新闻电视台KRON 4的节目《世人的恶行》日前将焦点对准了中国城的"挤车族"。