The "TV control interface" occurs in a white box expansion at this level of decomposition, and thus is treated as a black box.

“电视控制接口”就被视作一个黑盒来处理。

youdao

The "TV control interface" occurs in a white box expansion at this level of decomposition, and thus is treated as a black box.

“电视控制接口”就被视作一个黑盒来处理。

youdao