root length 根长 ; 牙根长度 ; 根系长度
specific root length 比根长 ; 和比根长
root length and width 根系长度和根幅
Root Length Density 根长密度
relative root length 以相对根长 ; 相对根长
Root length density production 落叶松平均细根生长
SRL specific root length 林业 ; 比根长
tap root length 主根长
Nitrogen supply had no effect on average root length density.
施氮对平均根长密度的影响差异不明显。
参考来源 - 膜下滴灌水氮对棉花根系构型的影响·2,447,543篇论文数据，部分数据来源于NoteExpress
As you can see, along the length of the hair, there are three main parts called the bulb, the root and the shaft.
如你们所见，顺着头发的长度可以分为三个主要部分，分别是毛囊、毛根和毛干。
These produce oil which flows along the length of the hair and the health of the root determines the overall health of the strand of hair.
这些会分泌油脂，油脂顺着头发流动，而发根的健康程度决定了该缕毛发的总体健康。
All of the regulators did not have significant effect on the root length.
四种生长调节剂对根长生长没有明显的促进或抑制作用。
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