根

Soil corer was used to investigate the distribution of fine root and a traditional method of nylon litter bag to measure the decomposition in pure Cunninghamia lanceolata and Michelia macclurei var Sublanea ,and the mixed plantations.

用土钻法研究了杉木、火力楠纯林和混交林的细根分布，用分解袋法研究了杉木和火力楠细根的分解，计算了3个林分中细根分解的N，P，K，Ca，Mg的归还量。

Can, under the guidance of the teacher, the correct file to use root canal + protaper, prepared root canal, the sharp taper gutta-percha filling + fiber post + crown restoration or filling operation, the independent number of cases completed root canal therapy and filling.

能够在老师的指导下，正确运用根管锉＋protaper，预备根管，大锥度牙胶尖充填＋纤维桩＋冠修复或充填术，独立完成若干例根管治疗及充填术。

Lower molar residual root/crown can be preserved for a long time after perfect enˉdodontic or root canal therapy and reconstruction of dental root post/core crown At understanding exactly the indicaˉtion.

笔者从1993年5月开始试着对那些下颌磨牙近远中根分离，髓室底缺如，已建议拔除的残根残冠采用单根独立桩核冠修复的83例136牙经3～5年以上复查，获得较满意的效果。

D after setting, the fresh root weight and dry root weight of IC3 were 8.63 and 0.35g, respectively, which increased by 9.30% and 5.67% compared with the control (without plastic pipe and plastic pot) and the difference reached significant level; CO2 concentration of root rhizosphere of cucumber on IC3 was 0.309% at 13:00, which reduced by 29.4% compared with the control.

定植后13d， IC3处理黄瓜的根鲜重、根干重依次为8.63， 0.35g，比对照分别增加了9.30%和5.67%，差异达显著水平；在13：00时，IC3处理黄瓜根际CO2含量为0.309%，比对照降低了29.4%。

The main contents are listed as follows: 1. Nine square concrete-filled thin-walled steel tubular columns with stiffeners (six specimens with longitudinal stiffeners in two directions and three specimens with longitudinal stiffeners in one direction) have been experimentally investigated under combined constant axial load and lateral cyclic load in order to get their hysteretic behavior.

具体进行了以下几方面工作：(1)共进行了9根设肋方形薄壁钢管混凝土柱(6根双向设纵向加劲肋、3根单向设纵向加劲肋)在恒定轴力和往复荷载作用下的滞回性能试验研究。

Aerating roots (or knee root or knee or pneumatophores or Cypress knee ): roots rising above the ground, especially above water such as in some mangrove genera.

曝气根（root 或膝盖或膝盖或呼吸根或赛普里斯尼）：根以上的地下水上升，特别是在一些如上述红树属。

Compression of nerve roots often produces objective sensory changes early, with paresthesia and loss of sensating detectable in the affected dermatome.

神经根受压常很早即产生客观的感觉变化，在受影响的皮节区有感觉异常及感觉缺失，神经根持续受压，可发生运动肌无力，若累及腰4神根，可见膝腱反射减弱和轻度股四头肌无力，小腿肌肉感觉减退。

The CPT values in the affected leg in patient group were significant higher than those in control group at all frequencies. The CPT values in contralateral leg in patient group were significant higher than those in control group at 5Hz whereas there were no significant differences at 250Hz and 2000Hz. The CPT values in affected leg in patient group were significant higher than those in contralateral leg at 250Hz and 2000Hz whereas there were no significant differences at 5Hz. All the CPT values showed the same linear decrease from the dermatome of the compressed root to the dermatomes of the contralateral neighbor dematom.

在用CPT监测8例腰骶单神经根病组患侧和健侧及与正常对照组的不同直径感觉神经纤维功能的研究中发现压迫皮节和其临近皮节的所有频率CPT值无任何显著性差别；患者压迫侧的2000Hz及250HzCPT值及压迫侧和对侧的5HzCPT值与正常对照组都有显著性差别；患者组5HzCPT值患侧和对侧无差别，其他两组均有显著性差别；不管有无显著性差别，神经根病患者组各皮节三频率CPT值均按照压迫皮节，临近皮节，压迫对侧皮节，压迫对侧临近皮节的顺序减小，说明在腰骶单神经根病中Aβ纤维及Aδ纤维及无髓C纤维均受累。

Compre ion of nerve roots often produces objective se ory changes early, with paresthesia and lo of se ating detectable in the affected dermatome. With continued root compre ion. Motor weakne may develop. With involvement of the L4 root, the patellar tendon reflex may be diminished and slight quadrice weakne may be o erved.

神经根受压常很早即产生客观的感觉变化，在受影响的皮节区有感觉异常及感觉缺失，神经根持续受压，可发生运动肌无力，若累及腰4神根，可见膝腱反射减弱和轻度股四头肌无力，小腿肌肉感觉减退。

The incidence of double root canal is high in the single-rooted maxillary premolars.

上颌前磨牙单根双根管率较高，其根管峡部的发生率因此也较高。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。