polygraph machine的用法和样例：
例句
- Polygraph, its work's very similar to any other biofeedback instrument.
测谎仪的工作原理像其他的身体反馈仪器一样。 - The producers devise questions after interviewing friends and family members, and they are posed to the contestant separately with a polygraph machine before the taping.
制作人将在采访过朋友和家人之后决定问什么问题，并且这些问题将在录影前提供给不带测谎仪的参赛者。
