查询词典 investigations

During the investigations, some basic research methods and theories such as mending the end section profile of the screw arbor gear applying the conjugate principle, the milling outline for the screw arbor profile cutter by kineto-synthesis method, establishing the dummy variable model of the screw arbor by the CAD method, the theory of the distributing of the fluid pressure on the screw, the precision analyzing and computing screw profile by the dummy model and FEM method are established.

在研究过程中确立了一些基本的研究方法和基本的理论。如应用共轭原理改进螺杆端截面齿曲线的、利用运动合成的方法研究螺杆成形铣刀廓型、应用计算机辅助设计的方法建立螺杆的虚拟模型、应用牛顿流体理论研究螺杆中的流体压力分布、应用有限元分析计算方法对螺杆做精确分析计算。

The analysis data came through scene surveys and video record investigations. The stair speed rule considering the factors of sex, age, and the information guide is analyzed by statistics methods. According to the change rule of the density with speed, the speed or volume data at the certain density are combined. The relationship between volume, density and speed is obtained through suitably enhancing the density of the data in sensitive regions.

通过现场观测和摄像调查获取大量数据，利用统计学的方法分析性别、年龄以及信息对楼梯速度的影响规律；根据行人速度随密度变化的大致规律，对给定密度下的行人速度或者流量数据进行合并处理；适当加密变化敏感区域的数据，并利用这些统计数据建立上下楼梯行人的流量—行人密度—速度曲线关系。

The investigations indicat that it is feasible to use hot dipping 55% Al-Zn process to improve the corrosion resistance of N80 steel.

试验结果表明：将热浸镀55% Al-Zn合金技术应用于非调质N80钢的防腐是可行的。

Based on the analysis and investigations of dual-band microstrip annular ring slot antenna, a novel miniaturized dual-band annular ring slot antenna for WLAN applications is presented. It utilizes two rectangle notches to overcome the problem of resonant effects caused by the distance between inner and outer ring slots.

基于对微带双圆环缝隙天线的研究与分析，通过连接型矩形槽设计克服了内、外环距对谐振效果的影响，提出了一种应用于无线局域网通信的小型双频圆环缝隙天线，并且可以实现圆极化。

Investigations and experiments indicate that charring ablators provide the most efficient thermal protection shield for the re-entry vehicles.

载人飞船返回舱的烧蚀热防护技术研究和试验表明，碳化烧蚀材料是再入飞行器最有效的热防护层。

Based on the characteristics of Karst developing in the dam site, engineering geologic mapping, core drilling, adits exploring, geophysical investigation as well as a large amount of hydro geologic test and rock mechanic test have been finished during the course of the karst investigations.

根据武都水库的坝基岩溶较为发育的工程地质特点，在勘察过程中，采用了工程地质测绘、调查、钻探、平硐以及先进的物探测试手段，同时进行了大量的水文地质和岩体力学试验。

It is considered in this paper that the light and heat oxygen resistance ageings of silicone acrylate resin are better than those of normal acrylic and polyurethane resins, through the theoretic investigations into the reaction mechanisms of the light and heat oxygen ageings of high molecular polymer and contrasting, when exposed to light and under a high temperature, the changes in colour,shape, tensile strength and elongation of Silicone Acrylate Resin DX 8501 to the normal acrylic and polyur...

本文通过对高分子聚合物的光氧老化、热氧老化的反应机理的理论探讨和对DX8501硅丙树脂、普通丙烯酸树脂、普通聚氨酯胶膜在紫外光照射下和高温条件下的颜色、形态、抗张强度、伸长率的变化情况对比，认为硅丙树脂的耐光氧老化和耐热氧老化的性能优于普通的丙烯酸树脂和普通的聚氨酯。表3，参考文献8

Investigations into PPAR agonists may develop new approaches to the treatment of skin disorders.

过氧化物酶体增殖因子活化受体激动剂的研究可能提供皮肤病治疗的新手段。

In experimental respect, the experimental investigations of natural convection heat transfer of air layers in vertical annuli are presented.

本文首次从实验和理论两方面对大高宽比竖环形封闭空腔内自然对流换热进行了比较全面和系统的研究。

Therefore, we designed a porous effervescent atomizer. In this paper, experimental investigations have been conducted on the combustion characteristics of effervescent atomizers, and the experimental data could provide guidance for the designing of atomizers.

气泡雾化喷嘴作为一种新型的雾化喷嘴，具有雾化质量高、耗气量小等特点，因此比较适合用于雾化重、渣油等高粘度液体燃料。

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。