Never let the water level fall below the base of the tree or the cut end may seal over, preventing further water intake.

不要让水位降到树基以下，或者树干截面以下，否则截面干涸以后，松树就无法充足的吸收水分了。

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A small hole drilled in the filter intake just below water level will prevent accidental syphoning.

在滤器水位以下的入口上钻一个小洞就可以防止意外漏水。

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In recent years, U. S. marathons have experienced participant deaths due to excessive intake of water, which can lead to an abnormally low level of sodium in the blood, or hyponatremia.

在最近几年里，美国马拉松跑步者已经经历了由于饮水过量导致血钠浓度过低或低钠血症的致死事件。

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April 11 data showed only a 7-centimeter drop in the Guri water level and an even bigger increase in water intake 1, 035 cubic meters per second over a one-day period.

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These valves use a screw type valve instead of a simple flap, and they have a pressure regulating mechanism that will vent water to the ground if the intake pressure exceeds a set level.

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