Better efficiency, more strength and power, and greater training volume without additional breakdown — these are the ways in which cross-training directly boosts running fitness.

更有效，更有力量，更有能量，更高的训练量而没有伤痛——这些是交叉训练直接提高跑步能力的方面。

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The heat pipe and heat exchanger have the advantages of high heat transmission efficiency, simple structure, safety and reliability, small fluid resistance, needing no repairing and additional power.

热管及热管换热器具有传热效率高、结构简单、安全可靠、安装方便、流体阻力小、不需维修和外加动力等优点，已经获得了广泛的工业应用。

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