查询词典 meso

This research applies the micro forming process with other mass production techniques to construct the key components of the micro/meso gear transmission. The final prototype is the planetary gear transmission with outer diameter 6mm and gear module less than 0.15mm developing in 3 years. The purposes and developing technologies of this project are as follows: 1. setting up the design and analysis of parts and system; 2. the mold design of gear and planet plate; 3. assembly modules of planetary gear train; 4. inspection of gear profile and gear train; and 5. heat treatment of micro parts.

本研究将以精微成形技术搭配其他量产制程，逐步开发微型减速机内的所有关键零件，预计在3年内最终完成外径≦ψ6mm、齿轮模数m≦0.12mm之的行星式齿轮减速机的开发，研发目标包含有微型传动系统结构/机构与零组件设计分析技术，试量产型精微行星/太阳齿轮、传动盘、环齿轮等原型件模具设计与开发，行星臂、太阳齿轮、行星齿轮与环齿轮等组装模组技术，微型齿轮齿形及相关微型齿轮箱检测技术，以及精微元件热处理技术等关键技术。

The meso-epithermal uranium deposit described in this paper is closely related to the"multiple-staged"composite quartz-syenite body, It is a new of uranium type deposit in our country.

本文介绍的中-低温热液轴矿庆与一个多阶段复式石英正长岩体密切有关。它是我国新的一种轴矿床类型。

Simulation of a typhoon case presents assimilating radar data advanced prediction of typhoon precipitation, intensity and track, enhanced the meso-P scale system on typhoon spiral rain-band.

4登陆台风试验结果表明同化雷达资料可以提高台风降水、强度和移动路径的预报水平，并改善初始场中台风螺旋雨带上的中-β尺度对流系统的结构。

The characterization results showed that the calcined sample in 300 ℃ was spongy structure tin dioxide with meso-porosity which was formed by accumulating nanoparticles (particle size: ca 5 nm).

结果表明，300℃焙烧处理后的样品由粒径约为5 nm的纳米粒子堆积而形成海绵状结构，其中孔的尺寸范围在2-8 nm，样品比表面积达到了134 m2·g-1。

In the filed of thermal conduction,traditional meso-mechanics model are mainly based on particle of typical geometry such as sphere or ellipsoid,and a generally adopted premise is the assumption of perfect contact conditions at constituent interfaces.The literature on composite materials lacks today a proper theoretical framework permitting a thorough study of the conduction problem for composites with particles of irregular geometry such as polygon or arbitrary shape in the presence of a thermal contact resistance.

利用细观力学的理论和方法预测和分析复合材料的等效性能，揭示其细观结构与其等效性能的关系，为复合材料设计和性能评价提供理论依据和系统的分析方法，是现代细观力学研究中十分重要的研究课题。

Random circle and sphere aggregate models, convex polygon and convex polyhedral aggregate models are separately adopted in the paper to simulate the flexural fracture process of concrete specimens in view of meso-mechanics.

本文分别采用随机圆形骨料、球骨料与多边形、多面体骨料模型，通过对全级配大坝混凝土试件弯拉破坏过程的细观数值模拟，对比分析了不同骨料模型形态对计算结果的影响，探讨了用球形骨料或圆形骨料简化实际碎石骨料的有效性。

The invention provides a nanometer catalyst for liquid phase oxidation process of cyclohexane, which is characterized in that a silica molecular sieve SBA-15 with meso pore canal is taken as a carrier; one or a plurality of transition metals is/are taken as active component, which is highly dispersed in the carrier, with lower content ranging from 1 percent to 3.5 percent of mass.

一种用于环己烷液相氧化的纳米催化剂，其特征在于：采用具有介孔孔道的全硅分子筛SBA-15为载体，一种或数种过渡金属氧化物为活性组分，活性组分在载体上高度分散，含量较低，范围为1％-3.5％质量。

Predicting potential ecological and economic conditions at micro and meso-scales depends on our understanding of potential ecological conditions, a view shared by many ecologists and hydrologists.

从现有生态与水文条件研究入手，探讨流域尺度的生态水文之间的相互关系，建立生态恢复模式，这对整个黄土高原的生态恢复与重建具有重要的理论和实际意义。

Although the North China rift basin is a Meso-Cenozoic tectonically active area, its activity is weaker than that of younger volcanic arcs or zones with violent tectonic movement.

这也许正是根据现今应县-商河剖面上大地电磁的探测结果看不出来存在通常所说的反映&软流圈&电性特征的&上地幔高导层&的原因。

The data show the following ages: 1894±17 Ma and 1847±59 Ma for garnet pyroxenite of the Tiantangshan Group complex, indicating a Paleoproterozoic age; 1462±28 Ma for the metabasic volcanic rocks of the Yunkai Group complex, indicating the presence of fragments of the Meso- and Neoproterozoic oceanic crust in the Yunkai area; 906±24 Ma for the granitic gneiss intrusion is, which should be the product of the global Grenville collisional orogeny occurring around 1000 Ma BP. In addition, an inherited detrital zircon age of 2702±13 Ma was also obtained, which is the oldest age in the Yunkai area and even in Cathaysia, proving the presence of Neoarchean continental crustal material in Cathaysia.

获得天堂山岩群石榴辉石岩的形成年龄为1894Ma±17Ma和1847Ma±59Ma，表明其时代为古元古代；云开岩群洋中脊型变质基性火山岩的喷发年龄为1462Ma±28Ma，证明该地区存在中元古代的古洋壳残片；获得花岗质片麻岩的侵入年龄为906Ma±24Ma，应为1000Ma前后发生的全球性Grenville期造山作用的产物，并获得2702Ma±13Ma的继承碎屑锆石年龄，这是云开地区乃至华夏古陆目前获得的最古老年龄，证明华夏古陆曾存在新太古代陆壳物质。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。