high echo level specklings 高水平回声斑点
high level echo 高回声
high-level echo 高回声
high level echo area 高回声区
inhomogeneous high level echo 不均质高水平回声
high echo-level
高echo-level
以上为机器翻译结果，长、整句建议使用 人工翻译 。
To start with, the handset will feature a dedicated Waze launcher key for GPS navigation duties, and will also sport "high level noise reduction and echo cancellation, " along with hands-free voice activation.
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