表明铝胁迫时粘胶层具有保护根尖的作用。
These proved mucilage could protect root tip from Al injury.
根尖的初生分生组织可扩大到伸长区下方一段距离。
The primary meristem of the root tip may be extended a section of distance below the elongation region.
根尖功能与生长素运输、根尖的卸载及根中的分布有密切关系。
The function of root tip is related to transport, unloading and distribution of auxin in roots.
在水曲柳实生苗根尖的初代培养中，选用15种不同的消毒剂对水曲柳实生苗根尖进行消毒处理。
During the first culture, 15 different disinfectors were used for surface-sterilizing of seedling root tips.
因此，试验结果表明，铝诱导的有机酸分泌量及根尖的铝含量不能作为筛选大豆耐酸铝种质的筛选指标。
Thus, this experiment suggests that Al-induced citrate exudation and Al accumulation in root tips can not be used as standards for screening Al-tolerant soybeans.
结果表明，稀土复合肥和三种稀土元素均可诱发微核效应，在一定浓度下可损伤细胞，影响根尖的正常生长，其中稀土复合肥的微核效应表现出明显的剂量-效应关系。
The technique used is micronucleus in root tip cells of Vicia faba . The experiment statistical result shows that both the rare earth compound fertilizer and the three kinds of…
他们甚至声称植物的根尖上有“类似大脑的指挥中心”。
They even claimed that plants have 'brain-like command centers' at their root tips.
他的任务是在基地里四处巡视，带着根尖尖的棍子捡垃圾。
对主栽品种的根尖细胞染色体数进行了观察；
The number of chromosomes in the root tip cells was observed.
周后，冒出了两公厘宽的臼齿牙冠，具有牙髓腔、牙根的根尖、一层如骨骼般的象牙质，以及最基本的珐琅质。
Thirty weeks later two-millimeter-wide molar crowns emerged complete with pulp chambers root tips and bonelike layers of dentin and in a first enamel.
方法：采用染料渗漏法和扫描电镜观察新型聚氨酯液体根充材料与根管壁之间的密合度及其对根尖孔的封闭能力。
Methods: To observe the gaps between material and the walls of canals by scanning electron microscope, the apical sealing ability of material by dye penetration method.
齿根尖切除就是要将受到感染的根梢的一个非常小的部分切除掉。
Apicoectomy is the removal of a very small Part of the infected root tip.
拍包括咬圈和齿根尖部在内的一套X光照片。
结果：新型根管充填材料能够严密地封闭根尖孔，与根管壁间的密合性优于常用根管充填材料。
Result: The novel root canal material can seal apical densely and has better degree of obturation than normal materials.
结论：牙在下颌骨上相对位置的变化会对其根尖主应力大小及方向产生一定的影响，而且其影响程度还会受到咬合对称性等因素的影响。
Conclusions: the variation of tooth position could affect the magnitude and direction of the main apical stress, in which the symmetry of the occlusion type was also involved.
结果：在对称性咬合，牙位的变化对各牙的根尖主应力方向无影响。
Results: the variation of tooth position gave no effects to the directions of principle stress around apex area in symmetrical occlusal type.
目的：比较不同根管充填方法对根尖孔的封闭能力。
Objective:To compare the apical sealing ability of different root canal filling means.
前言：目的：观察意向再植术治疗磨牙根尖周炎的临床疗效。
Objective: To observe effects of replantation on treatment of serious periapical periodontitis of molar.
根管治疗术是牙髓病和根尖周病的基本治疗方法和最佳选择。
Root canal therapy is the basic and most optimal curing method of pulp diseases and apical diseases.
第一个细胞周期的激活样式表明，这些细胞并不同步激活，而是依次进入细胞周期，且进入的次序与自身在根尖中的相对位置有关。
The kinetic pattern of activity of the first cell cycle showed that these cells were not activated synchronously, but re_entered the cell cycle in turn depending on their places in the root tip.
目的观察甲硝唑复合剂治疗急性根尖周脓肿的疗效。
Objective To observe the therapeutic effect of Flagyl compound on acute periapical abscess.
以不同浓度的污水和硫酸铝作为诱变剂，测定豌豆根尖细胞的有丝分裂指数、微核率和染色体畸变率。
With different concentrations of sewage and aluminum sulfate as a mutagen, pea root tip cells in the mitotic index, micro-rate and the rate of chromosomal aberrations are determined.
结论FE复合酶是一种安全、有效的控制急性根尖周炎的局部使用药物。
Conclusions fe Compound Enzyme was a safe and effective drug for controlling the local infection of acute apical periodontitis.
目的：探讨慢性根尖周炎的x线诊断与临床病理诊断之间的关系。
OBJECTIVE: To study the comparison of X-ray diagnosis and clinic pathology diagnosis of chronic periapical periodontitis.
根管治疗是现今牙髓病和根尖周病的基本治疗方法。
Root canal therapy is a fundamental method of treating pulpal and periapical diseases nowadays.
目的了解牙体及根尖周病的发病情况，为临床诊断及治疗提供参考价值。
Objective To study the state of tooth and periapex so as to provide reference for clinical diagnosis and treatment.
我的头上有两根尖锐的角。
我的头上有两根尖锐的角。
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