They don't know or care about how the TV works or what components exist inside, only that they can interact with it via its inputs (remote control, power plug, etc.) and outputs (screen and speakers).

他们不知道也不关心电视是如何工作的、里面都存在那些组成要素，他们所做的只是通过输入（遥控器、电源等）和输出（屏幕和扬声器）来同电视进行互动。

youdao

High Alphabet modulation is a new modulation method, which is very suitable for safety remote control aboard missile, launch vehicle, manned or unmanned spacecraft, etc.

主字母调制技术是一种新颖的调制方式，非常适合于导弹、运载火箭以及载人和不载人飞船的安全遥控。

youdao

The design improves the sensor's performance mainly by increasing auto - zeroing, nonlinear compensator, remote control led regulating and self failure - testing etc.

非线性补偿、遥控调节、故障自动检测等几方面来提高瓦斯传感器的性能。

youdao

Basically just displays a traditional remote on the screen, no gestures control etc.

ENGADGET: Bobby Universal Remote for the iPhone review HD

Once docked, the iPod can be operated (song selection, play, etc.) via the YSP's remote control and on-screen display.

ENGADGET: Yamaha intros YSP-3050 Digital Sound Projector