But even in the best of conditions, it can be difficult to judge how much moisture a plant needs until it shows signs of stress: leaf drop, wilting, brown edges.
但是，即便在最好的情况下，也很难在植物出现了问题(如：掉叶子、打蔫、叶边枯萎)之前判断某个植物需要多少水。
Because of this, everything in her eyes are beautiful incarnation, a weed, a leaf, a cloud, a drop of water... Have vitality, is a language, can be carried with her mind exchange.
因为，世间每一件事物在她眼中都是善良美丽的化身，一株野草，一枚落叶，一朵浮云，一滴水珠……都是有生命力的，都是有语言的，都是可以与她进行心灵交流的。
A drop of rain hangs on a leaf during a downpour in Washington, DC.
上图展示了大雨过后，悬挂在华盛顿特区一片树叶上的一滴水珠。
In this tutorial you will learn how to simulate a water drop rolling down a leaf in a very convincing manner.
在本教程你将学习如何以模拟水滴滚下在一个非常令人信服的方式全新的一页。
When soil moisture contents were above 9.5%, there was no apparent change in leaf water potential with a drop in soil moisture contents.
当土壤含水量在9.5％以上时，随土壤含水量的下降叶水势变化不明显。
We normally grind up a leaf or a root and average the information for all cells, but if sugar levels rise in one cell and drop in another, we would see no change in this average.
我们通常将植物的根和叶碾成粉末，然后平均所有细胞的成份，但是如果在单个细胞糖水平升高和降低，我们将从平均水平上是看不出来的。
We normally grind up a leaf or a root and average the information for all cells, but if sugar levels rise in one cell and drop in another, we would see no change in this average.
我们通常将植物的根和叶碾成粉末，然后平均所有细胞的成份，但是如果在单个细胞糖水平升高和降低，我们将从平均水平上是看不出来的。
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