你看，传声器作用与电话的送话器很相像。

The microphone, you see, ACTS much like a telephone transmitter.

youdao

本文仅涉及为研究一种多功能的骨导送话器测试仪而开展的应用基础研究结果。

This article involves tbe achievement of development of applied basic research for studying a multifunctional bone-conduction transmitter testing instrument.

youdao

这套设备除了一般的电话送话器以外，还包括一个小萤光屏和一个电视摄像机。

In addition to the usual telephone hanDset the equipment includes a small television screen anD, combined with the screen, a television camera.

youdao