另一方面，接收单元仅接收Vorbis编码的音频流。
The sink pad, on the other hand, simply accepts Vorbis-encoded audio stream.
中央的电磁带扣里安装有音频放大单元。
The center buckle featured an audio enhancement unit built into the electromagnetic clasp.
POTS业务单元提供普通的电话业务，音频专线业务。
The POTS service unit provides plain ordinary telephone services and audio dedicated line services.
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