【经】 交换价值

因此，劳动是衡量一切商品交换价值的真实尺度。

exchangeable sodium percentage\nESP\n土壤

non-exchangeable potassium

exchangeable base

shirt exchangeable attached to underbodies, drawers, or the like

non-exchangeable potassiumv

non-exchangeable nutrient【土壤】

base-exchangeable ions

exchangeable disk【计】;interchangeable disk【计】