什么是 leachable?To remove soluble or other constituents from by the action of a percolating liquid: heavy rains that leached the soil of minerals.To remove from a substance by the action of a percolating liquid: acids in groundwater that leach calcium out of the bedrock.To empty; drain:"a world leached of pleasure, voided of meaning"(Marilynne Robinson).The act or process of leaching.A porous, perforated, or sievelike vessel that holds material to be leached.The substance through which a liquid is leached.