谷气下流gǔ qì xià liú

cereal nutrientflowing downwards

• aliment
• alimentary canal
• alimony
• ali pasha
• aliphatic compounds
• aliquant
• aliquot
• al-ismailiyah
• alive
• alizarin
• ali，muhammad
• al-jazeera tv
• al-jazirah
• alkali
• alkali metals
• alkaline-earth metals
• alkaline earths
• alkali(或base)
• alkaloids
• alkanes(或paraffin)
• alkanet
• alkan，charles henri valentin
• alkenes(或olefins)
• al-khurtum
• al-khwarizmi，muhammed ibn musa