奶牛通过何种方式降低体温?

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[size=156%]•1) conduction, where the cow conducts heat to a cooler surface 传导—— 奶牛传导热量到一个较冷的表面
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2) convection, where thermal currents leave the cow’s body
[size=200%]•对流, 热气流离开奶牛的身体
[size=156%]•3)radiation, where the cow radiates heat to a cooler environment, such as the cool night sky
[size=156%]•辐射——热量到较冷环境如晚上凉爽,
[size=156%]•4)evaporation, where moisture is evaporated from the body surface (sweating) and lungs (panting).
[size=156%]•蒸发——水分从身体表面 (出汗) 和肺脏被蒸发的地方.(喘息)