本实用新 型结构简单，采用自流式冷却介质，动力消耗小，传热效率高，可循 环使用。
The utility model has simple structure, and adopts gravity flow type cooling medium, thus having small power consumption, high heat transfer efficiency and cycle use.
攀爬之前要观察并判断所有已经固定在路线上面的装备是否状态良好，包括膨胀钉和挂片，尤其是保护站和难点上，这些地方上的钩环使用频率最高，磨损也最为严重。
Visually and manually inspect all fixed gear before using it, including bolts and anchors, and especially those at stations and cruxes where the carabiners see maximum wear.
在单一环境中使用两种功能，该服务只能使用一次，因为它们都是为特定的用途设计的。
With both functions in a single environment, the service could be used only once, for the specific purpose it was designed for.
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