1. The headphones are amplifying their heartbeat. 耳机在放大他们的心跳声。
2. The technology of amplifying solar energy can save the number of semiconductor materials required for photovoltaic cells. 通过放大太阳能的技术可以节约光伏电池所需的半导体材料的数量。
3. With an amplifying device like a microphone, the speaker can use a natural tone. 有了麦克风之类的扩音装置，演讲者就可以使用自然的音调。
4. The sound-amplifying 3M Littmann Electronic Stethoscope 3200 listens to a patient's heartbeat and beams the beats to Cardioscan software. 这款 3M 利特曼电子听诊器3200放大患者的心跳声并传输心跳数据到心扫描软件中。
5. And has the force amplifying function. 并具有力的放大作用。
