It may require warming a planet's surface, introducing oxygen to its atmosphere and creating a water supply, among other massive undertakings.
在众多的巨大工程里面，或许还包括加热行星表面，为大气层输氧，创造水源等等艰巨任务。
Surface water resources is changed with water supply sources, but water supply sources can be changed by human activity.
地表水资源量的变化是随着补给源补给量的变化而变化的，人类活动可以改变地表水的补给源。
Select a location near the fixture that this water heater will supply. The water heater must be installed indoors and in a vertical position on a level surface.
选择这个热水器所要供水的用具附近的位置。这个热水器必须在室内的水平地面上立式安装。
Thus the drought area in different regions could be determined and regression equations to estimate surface drought index by vegetation supply water index were established.
由此，用植被供水指数确定了各地州的受灾面积，并建立了植被供水指数估计地面干旱指数的遥感方程。
The average supply and return water temperatures are main factors affecting floor surface heat flow density and average floor surface temperature.
供、回水平均温度是影响地板表面热流密度和平均温度的主要因素。
The average supply and return water temperatures are main factors affecting floor surface heat flow density and average floor surface temperature.
供、回水平均温度是影响地板表面热流密度和平均温度的主要因素。
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