The rate of evaporation depends on the material and such factors as the temperature, the surface area, amount of ventilation, and the pressure exerted on the surface.

蒸发速率取决于材料及诸如温度、发面积、风量和施加在此蒸发面上的压力等因素。

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This paper gathers up many methods and forms of formula in calculating the amount of air-removal through ventilation cabinet in laboratory.

介绍了实验室通风柜、化验台的通风排气量的计算方法，提出了在冬季采暖新风耗热量大的情况下的补风节能措施。

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The MTA took extensive measures before the storm to limit the amount of water flooding into tunnels, including by boarding up ventilation grates in low-lying stations, piling sandbags at station entrances, inflating a rubber dam in the Long Island Rail Road's West Side yards in Manhattan and hastily erecting a floodwall across the mouth of the No. 3 train tunnel near East 148th Street in Harlem.

WSJ: Salt Water Puts City's Subway System 'in Jeopardy'