iron manganese concretion

常見例句

雙語例句

• 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，對數(shù)模型能夠?qū)ν翆雍穸?、粘粒含量與地形的關(guān)系進行最優(yōu)擬郃；
返回 iron manganese concretion