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Methods: 60 patients with isolated anterior teeth used zinc oxide paste and iodoform gutta-percha point for lateral condensation, then the experimental group had the root canal filling pressure into FRC pile nail, the control group would no longer be dealing with, two groups had apical dye leakage test.

选60例离体前牙，采用碘仿氧化锌糊剂及牙胶尖做侧压充填，然后实验组在已充填的根管内加压插入FRC桩，对照组不再做处理，对两组做根尖染色渗漏试验。

The configurational unit of this system was the filament or filament band. Filament averages about 10nm in diameter.

构成此体系的基本形态单元是直径约10nm的单根纤维或由单根纤维合并成的纤维束。

Meshing properties and application of major conical surface double envelope Hourglass worm gearing;2. In this paper, the regularities of undercutting and topping of major conical surface envelope hourglass worm is researched.

分析了大锥面包络环面蜗杆的齿顶变尖和根切规律，并通过和平面包络环面蜗杆的比较，得出其在根切和齿顶变尖这两个方面具有比平面包络蜗杆更优良的性能，因而是一种在实际中可替代平面包络、具有广泛应用前景的新型包络蜗杆传动。

Combined with CAD software development of grids,the design method of bolt-sphere joint is put forward based on geometry restriction and intensity restriction. The geomitry dimension of each component is determined firstly based on bolt diameter and contexture, then, maximal pull and stress of diversitied bolt are given after intensity restriction of all components is taken into acount.

在网架结构中，节点起着连接汇交杆件、传递屋面荷载和吊车荷载的作用，而网架结构属空间杆系，汇交于一个节点上的杆件至少有 6根，多的可达 1 3根，各杆件间的夹角大小不同，且节点各构件间的几何关系或强度关系相互制约，使得节点设计十分繁杂。

Methods twenty-eight patients with spastic cerebral palsy were treated with SPR and SAR at the level of conus medullaris.

1994～1998年在脊髓圆锥部进行选择性脊神经后根切断术的同时进行选择性脊神经前根切断术治疗痉挛性脑瘫28例。

The essential point, however, is the fact that the convex凸起的 mirror is able to absorb and reflect in a single image both the floor and the ceiling of the room, as well as the sky and the garden outside, both of which are otherwise barely visible

在两人头顶上方，朗朗白日之下却留有一根点燃的蜡烛，华丽铜制吊灯上的这根燃蜡也许能解释为婚礼的光芒，或者是代表上帝的眼睛。

Starting with a discussion of the coradical filtration of pointedcoalgebras in the second chapter,we give a vector space comple-ment of Cn?

首先从pointed余代数的余根滤链的结构出发，本文第二章给出了余根滤链Cn？

A cordage, what is this cordage ?

一根绳子，这根绳子是什么？

Cori Morgan, 7, and her sister, Shadia, 3, had left their bedroom for the living room just before the

这两个女孩儿分别是现年7岁的科莉·摩根和现年3岁的莎迪娅·摩根，她们是一对亲姐妹。

A similar underground stem or root, such as a corm, rhizome, or tuber.

球茎一个类似的位于地下的茎或根，如球茎、块茎或球根

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。