So if we just plot this distribution, of course it's easy to do, it's just a decaying exponential.
如果我们画出这个分布，这很简单，就是一个指数衰减。
The degradation rule of metsulfuron-methyl accorded with decaying exponential, that meant there was inverse linear correlation between the logarithm of metsulfuron-methyl concentration and the time;
甲磺隆在土壤中的降解符合指数降解规律，即土壤中剩余甲磺隆浓度的对数与小麦生长时间呈线性负相关；
If there's more of it, you'll just have more at any given time decaying over to products. So you have an exponential decay.
如果A物质比较多，所以所以在给定时间，有更多的反应物变成产物，这样就得到了指数衰减。
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