Instances allow users to have separate, independent environments for production, test, and development purposes.
实例允许用户拥有独立自主的环境，用于生产、测试和开发。
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DeFilippi says the troponin test turns out to be a strong predictor by itself of heart failure or of death from any kind of heart disease, and it does so independent of other risk factors.
Today's test proved this weapon will provide the warfighter with platform-independent, networked fires with immediate and responsive precision against moving targets.