The results show that the root neck is the best explant of tissue culture and fast propagation for Anigozanthos manglesii.
结果表明：根颈是曼氏袋鼠爪组培快繁的最适外植体；
Tooth coronal and tooth root boundary show one arc curve, call tooth neck, renown neck predestined relationship or neck line.
牙冠与牙根交界处呈一弧形曲线，称为牙颈，又名颈缘或颈线。
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