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单词 water balance
释义

water balance

/ˈwɔːtə ˌbaləns/ /ˈwɔːtə ˌbal(ə)ns/
noun
1A machine for raising loads to a height, consisting of two cars or platforms with water tanks attached, connected by a chain passing over a pulley, so that a laden car with an empty tank is raised by the weight of the unladen car with a full tank.
2In a living organism: the equilibrium between water intake and water loss.
3In soil science and hydrology: the equilibrium between the water entering an ecosystem in the form of precipitation, and that stored in or leaving it in the form of run-off or evaporation.

Origin

Early 19th century (in an earlier sense). From water + balance.

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更新时间:2024/9/21 13:24:06