iron manganese concretion
常見例句
- The curve model can express well the relation between silt content, sand content, slope deposit depth, iron-manganese concretion depth , all the soil fertility properties and terrain.
其中,對(duì)數(shù)模型能夠?qū)ν翆雍穸取⒄沉:颗c地形的關(guān)系進(jìn)行最優(yōu)擬郃; 返回 iron manganese concretion