管

Mental canal , which bends backward and upward and outward then opens into mental foramina.

结果 下颌管前端分出同一方向前行的切牙神经管和向后、上、外转弯的颏管。

METHODS: Forty extracted teeth with single straight canals and completed foramina were selected.

选择根尖孔发育完成的单根管离体牙40个，在生理盐水琼脂模型上，分别在根管内灌注25g/L次氯酸钠液、生理盐水、170g/LEDTA、30mL/L过氧化氢液和蒸馏水，在根管干燥条件下，用Root ZX测量牙齿操作长度，分析根管内容物对Root ZX测量值的影响。

Equipped with a variety of advanced machines for cold processing searmless we produce diffcrent sizes and types of exactitude seamless steel tubes,The indexes of our products have reached or forereached the requirements of products can reach500 ton.

我公司成立于2000年，是一家专门从事冷轧高精密黑色、有色金属无缝管的专业生产厂家，拥有国内先进的冷轧无缝管机，可生产多种规格、品种的精密无缝管材、管件，产品指标均已达到或超过GB8713-88标准，年设计产量可达500吨。

In this paper, the method of growing carbon nanotubes bycatalytic decomposition of 〓 in low temperature on apowder Ni-Mg-O catalyst system is used. By controlling thereaction conditions and catalyst precursor, we preparedifferent configuration of carbon nanotubes and discuss themechanism of carbon nanotubes growth, we firstly researchthe character of lithium ion intercalating carbon nantubes,and reach some important conclusions.

本文主要采用了甲烷在镍基催化剂上的低温裂解，控制不同的条件和催化剂前驱体，制备出各种不同形态参数的碳纳米管，讨论了碳纳米管的生长机理；并且首次研究了各种不同形态参数的碳纳米管的嵌锂性能，取得了一些有意义的结论：一。

Electroanalytical applications have been found for determining some biomolecules recently, but the carbon nanotubes are only regarded as a kind of modified material to some traditional electrodes, such as, casting carbon nanotubes on Pt, Au and glassy carbon electrode or intercalating carbon nanotubes on graphite electrode.

值得注意的是在这些研究中，碳纳米管仅仅当作传统电极的修饰材料，比如，将碳纳米管涂在铂、金和玻碳电极上，或者将碳纳米管嵌入石墨电极表层中。

The concentration of the gas could be achieved by measuring the change of the conductivity. In the experiments, the gas sensor was prepared by spreading the water solution of carbon nanotubes between the interdigitated Au electrode, which was splashed on alumina. In this paper, three methods, such as mixing palladium and copper chloride, deoxidizing palladium and copper by chemical and electrochemical means, were used to doping palladium and copper in multi-wall carbon nanotubes.

实验中我们采用单壁和多壁纳米碳管作为敏感材料，在叉指金电极间涂布纳米碳管悬浊液作为气敏膜，用于有机挥发物如甲醛、苯、甲苯和二甲苯的检测，并着重研究了掺杂氯化钯和氯化铜盐溶液、化学和电化学方法掺杂钯和铜金属颗粒对多壁纳米碳管传感器的气敏性能的影响。

A lacunaris interface was formed in which CTs and CNT were intertwisted. And theunique performance of CNT and adsorption, complexation effect of CTs were combined.

壳聚糖复合碳纳米管修饰层内壳聚糖与碳纳米管相互缠绕，形成了多孔的界面结构，即发挥了碳纳米管的独特性能又体现了壳聚糖的吸附、络合性能。

Objective: To enhance the success ratio of the machinery ventilates patient's leaving alone stomach tube intubates disposable,reduced responded bad occurrence in the process of intubation.

作者：蒋可松，廖巧玲，蒋小剑，李世胜，邓永梅目的：提高机械通气患者留置胃管的一次性插管的成功率，减少插管过程的不良反应。

Subunit network composed by manifold s and laterals which are all multi-diameter pipes is the important part of micro-irrigation system.

微灌是一种先进的节水灌溉技术，其田间管网是微灌系统的重要组成部分，组成田间管网的支管和毛管均为多孔出流管。

A new designing method for sprinkle-irrigation laterals, in which the spacing of sprinklers can be changed with the outflow of sprinklers along the lateral, is developed.

在传统的喷灌支管设计中，支管上各喷头等间距布置，但是沿支管灌水量不相等。为此提出一种实现沿支管灌水量相等，但允许喷头间距变化的支管设计方法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。