root surface of weld 焊缝背面
Control root surface caries 控制牙根表面发生龋化
root surface attachments 根面附着体
Root Surface Area 根表面积
root surface conditioning 根面处理
early root surface caries 早期根面龋
exposed mineralized root surface 暴露的矿化牙根表面
root-surface 根面
root surface pH 根尖表面pH
Conclusion: root surface is the risk factor of root caries.
结论：根面是根龋的易感因素。
Water deficit is influenced by the level of soil water potential at the root surface.
水分 亏缺 是受根系表面土壤水势高低影响的。
Because of few root hairs on citrus root surface, citrus growth highly depends on mycorrhiza.
柑桔根系缺少根毛，对丛枝菌根的依赖性强。
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