人和陆生动物排泄物含有可溶的难处理有机物质。
The excreta of humans and land animals contain soluble refractory organic matter.
它们可能是可溶的或不可溶的，也可以是高或低粘度的。
They may be soluble or insoluble, and they may produce high or low viscosities.
一种白色可溶的化合物，用于冒泡的饮料和发酵面粉，也作抗酸剂。
A white soluble compound used in effervescent drinks and in baking powders and as an antacid.
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