"It depends on the rate of water loss," says Michael Sawka at the us Army Research Institute of Environmental Medicine in Natick, Massachusetts.

“这要看水分流失的速率”，位于马萨诸塞的Natick的美国陆军环境医学研究所的Michael Sawka说。

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This is normally closely related to the rate of water loss by transpiration and the potometer can be used to compare transpiration rates under different conditions.

通常与由于蒸腾作用而丧失水分的速率紧密相关，蒸腾计可被用于在不同条件下进行蒸腾速率的比较。

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It was revealed that significant differences in leaf water potential, stomatal resistance, transpiration rate, and rate of water loss of excised-leaves existed among genotypes.

研究表明，叶水势、气孔阻力、蒸腾强度和离体叶片失水速率品种间均存在明显差异。

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