查询词典 surface

Based on a quantitative analysis of radiolarian in 80 surface-sediment samples from the northern area of Okinawa Trough, this paper reported the species composition and faunal assemblages characteristic of radiolarian, expounded the distribution pattern of radiolarian abundance and diversity in surface sediments from this area. In this paper, a preliminary study on the relation of the distribution and abundance of radiolarian to environmental factors, such as chemical and physical properties of the overlying masses (sea-surface temperature, salinity, nutrients and primary productivity) and the type and composition of sea-bed sediments was made. The radiolarian data was evaluated using a Q-mode factor analysis to identify different faunal assemblages and their geographic distributions, then the relationship between radiolarian assemblages and distribution of water masses, hydrographic boundaries such as frontal systems was analyzed. A new radiolarian-based transfer function to estimate mean-annual sea surface temperature and seasonal range were examined to test its success in the study area.

本文对冲绳海槽北部80个表层沉积样品中的放射虫进行了系统鉴定和定量统计，研究了放射虫的种类组成与类群特征以及其丰度和分异度的分布；分析了海水温度、盐度、营养盐以及沉积物类型、成分等环境因素对放射虫分布的影响；采用Q-型因子分析，求得放射虫的属种和组合分布特征，探讨了放射虫组合与不同水团、海洋水文结构之间的关系；并对Pisias（1997）建立的估计表层海水年平均温度和其变化范围的放射虫转换函数在研究区的适用性做了检验。

Experiment: respectively measures the reaeration ability of the smooth overflow surface and roughened overflow surface(hemispheroidal surface and stepped surface), and analyses contrastively the effect and reason of reaeration improving after roughened modification.

曲线型溢流坝复氧室内模型试验：分别对光滑溢流面和糙化溢流面(粗糙溢流面及阶梯溢流面)的复氧能力进行了测试，对比分析了溢流面糙化后复氧增强的效果和原因。2。

Actually, the reparametrization method of Bézier surface is included in the theory of BBC surface. In this sense, the theory of Bézier surface is consummated and a simple reparametrization tool of Bézier surface is given.

对它的研究丰富了Bézier曲面的基本内容，同时提供了一种计算简单、操作方便、适用范围广泛的Bézier曲面重新参数化工具。

After some experimental results obtained in machining samples with complex ruled surface, concave spherical surface, convex surface and samples with both concave and convex surface are analyzed, the value of these samples in practical prodúction is discussed.

通过对一些典型的复杂直纹曲面样件以及凹球面、凸球面和凸凹复合球面样件加工实验分析，探讨了这些样件在实际生产中的应用价值。

Its principle is based on that there are some rdationships between curvatures of the theoretical profile surface and the real profile surface Curvatures of theoretical profile surface,which is a ruled surface,are easy to get.

该方法利用等距曲面间的曲率关系进行凸轮廓面曲率的解析计算。由于理论廓面是直纹面，其廓面曲率容易求得。

The systems of machining complex curved surface by means of WEDM are classified to establish the main kinematics theories of machining complex curved surface by means of WEDM By analyzing various systems of machining complex curved surface by means of WEDM, the combination, characteristics, motion parameters and motion types of them are summarized And a model system of the is established according to the basic principles of the forming of ruled surface in spatial analytic geometry.

主要内容及取得的成果体现在以下几个方面：为了建立复杂曲面电火花线切割运动学的主要理论，本文对复杂曲面电火花线切割加工系统进行了分类，并分析总结出各种复杂曲面电火花线切割加工系统的组成、特点、运动参数及运动形式。

In the electromagnetic field that countercurrent inductor produces, the metal droplet that melts gets the role suspension of electromagnetism force in quartz pipe center and had been heated up continuously. When metal droplet of melting have been heated up certain temperature surface beginning gasification, metal vapor tension will raise follow temperature go up, is heated continuously can have plenty of metal atoms overflow metal ball liquid surface, at the same time, as the inert gas of cooling medium, all along with certain current velocity, sideswipe the metal droplet surface that melts. Metal atoms fly out liquid surface according to certain way form the atom cluster by the condensing of inert air current, merger and the collision between crystal nucleus pellet and atom cluster form the smoke flame of nanoparticle pellet eventually.

在逆流感应器产生的电磁场中熔化的金属液滴受电磁力的作用悬浮于石英管中央并继续被加热，当金属熔球被加热到一定温度时表面开始气化，金属蒸气压随温度的升高而升高，继续受热会有大量的金属原子飞出熔球液面，与此同时，作为冷却介质的惰性气体始终以一定的流速掠过熔化的金属液滴表面，原子飞出液面受冷后就按照一定的方式凝聚成原子簇，在惰性气流中形核并随之长大，颗粒、原子簇间的碰撞与合并，最终形成金属纳米颗粒的烟焰。

Make a summary of geological bodies surface modeling methods,which including singular value surface compose method, inner bodies grid peel off surface method and the reconstruction method based on the outward curve of geological bodies,in addtion, the heuristic extend surface method.

将地质体表面建模方法总结归纳分为组合单值曲面法、体内剖分剥离表面法和基于外轮廓线的重构法，并提出有启发式的展铺法。

The goals of our work are to study the way of TiN coating on the chamber surface, especially on the inner surface of slightness pipe vacuum chamber, to get the surface with the characters of low surface thermal outgassing rate, low photon stimulated desorption and resistance to multi-electron impact, and to achieve experiment data and theory analysis as the basement of the fabrication of future particle accelerator EHV system.

本课题目的是实验研究采用材料表面溅射沉积TiN膜表面处理方法，获得材料极低表面热放气率、抗多次电子撞击和较低的辐射光致解吸，特别是细长管道真空室表面处理，为新一代粒子储存环极高真空系统建造提供实验数据和理论依据。

Firstly, the developing principles of the cylindrical internal helical gear are proposed through analyzing the movement and geometry requirements, which provides continuous contact between the mating gear surfaces. The tooth surface of the internal helical gear in the new gearing can be imagined as being generated by the normal section of the conjugated surface of the ball-tooth, moving along the radial projection of helix line of the tooth-root circle. Also, the proposed surface can be approximate tangent to the conjugated surface of the ball-tooth along a spacial curve.

首先，通过分析保证行星轮作螺环运动时与内斜齿轮实现连续啮合传动的运动和几何条件，提出了圆柱内斜齿轮齿面的两种形成原理：即由球齿运动包络曲面的法截面沿其齿根圆螺旋线在径向的投影进行拓展所形成的内齿面，以及与球齿运动包络曲面呈近似相切接触的等螺距齿面构成的内齿面。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。