如果仅仅是季节性运行，则在寒冷环境下开启测试旋塞。

Open test cocks to drain in cold climates if only operated seasonally.

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抽灌同井运行时的季节性储能很大程度地减轻了对含水层作为热源(汇)的依赖，而让其作为一种蓄热的载体。

For PRW, the seasonal thermal energy storage (STES) alleviated the dependency on aquifer for heat source or sink, and made aquifer as a carrier for heat storage.

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