dual-track recorder

例句：

1. 1.The dual-track recorder is used to capture sound waves from different directions.
   双轨记录仪用于捕捉来自不同方向的声音波。
2. 2. This dual-track recorder can store up to 50 hours of recordings.
   这款双轨记录仪可以存储高达50小时的录音。
3. 3.The engineer used the dual-track recorder to play back the recordings accurately.
   工程师使用双轨记录仪准确地回放录音。