Nowadays, the boundary between normal resin canals and traumatic resin canals is not clearly in the field of traditional theory.
在学习和研究的过程中仍然无法依据其定义很好地区别正常树脂道和创伤树脂道。
No more expetiation here as the monograph about Pinus dabeshanensis and its resin canals in leaves has been published in 1999 by my advisor.
有关大别山五针松针叶树脂道的研究工作，导师在1999年就出有专著，本文不再赘述。
Objective To evaluate the apical sealing ability of obturated root canals prepared hand ProTaper with stainless steel K files in simulated resin root canals.
目的研究两种临床常用的根管预备器械不锈钢锉和镍钛锉预备根管对充填后根管根尖孔封闭性的影响。
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