有关噪声的分析与控制关系到环境保护，关系到生活质量与身心健康，关系到工业产品的竞争力。
The analysis and control on noise relates to the environment protection, the quality of life and health of body and mind, the competition ability of industry products.
实际上，健康相关生活质量上的这一改善与心率降低的幅度有关。
That improvement in health related quality of life is actually related to the magnitude of the heart rate reduction.
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