根系: root system; radication desc ...的: 4次方是 The fourth power of 2 i ...阶: steps; stairs根系的长度: extent of the root system根系: [植物学] root system; radication descending axis主根系,直根系: taproot system根系基: root system basis浅根系: shallow root system须根系: fibrous root system; fibrous rootsystem直根系: aliphatic amine alkaloid; tap root system; taproot system主根系: tap root system; taproot system根的阶: multiplicity of root群的阶: order of a group单根系泊索: single mooring line分枝根系: branched root system根系定住性: rhizobenthic根系发生: rhizogenesis根系分布区: distributing district of tree roots根系分泌物: root exudate根系分枝: root system branches根系交织: matting of roots根系截获: root interception根系竞争: root competition根系扩张: root expansion根系伸展: root extension
