tetramethylurea

例句：

1. 1. This fertilizer is highly effective in improving soil quality.
   这种肥料在提高土壤质量方面非常有效。
2. 2.The farmer applied this compound to the soil to enhance its nutrient content.
   农民将这种化合物施于土壤中以增强其养分含量。
3. 3. The tetramethylurea was used as a preservative in the production of food products.
   四甲基尿素被用作食品产品的防腐剂。