The workers then add a glass cover, bolt on an aluminum frame, attach a junction box and package it for shipping.
工人们接下来用螺栓给一个铝框装上一个玻璃盖板，附上一个接线盒，然后包装发运。
You’d see it in commercials, they’d demo it in stores, and it seemed to represent a sort of shift where the TV image was no longer strictly confined to the solid frame of the box it came in.
你会在许多商业活动中看到它，人们会在商店里演示它，似乎画中画技术代表着一种转变，即电视的图像不再被死死地限制在一个电视固定的框里播放。
Scheduling is basically a time box method that defines the period of time for an iteration and the requirements that should be completed within that time frame.
计划调度基本上就是一个时间框方法，定义应该完成的交互和需求的时间范围。
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