quaternion is used to describe the orientation of a rigid body, and attitude motion is modelled.

1、

based on the characteristics of lava, an arc is used to describe the reflective interface.

本文根据火山岩体特征，用元弧描述火山岩的反射界面。

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2、

optimal description of surface primitive for range image segmentation

深度图像分割中的面元优化描述

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3、

a color image edge detector based on quaternion representation

基于四元数描述的彩色图象边缘检测器

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4、

space resection of single image based on the description of unit quaternions

基于单位四元数描述的单像空间后方交会

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5、

liquid sloshing in spacecraft containers in low-gravity environments was investigated numerically using the arbitrary lagrange-euler finite element method to model incompressible viscous liquid motion.

为了研究低重环境下航天器贮箱内液体晃动的特性，采用了任意Lagrange-Euler有限元方法描述贮箱内不可压粘性液体的运动。

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6、

governing equation is rans equation with standard κ-ε model, the discrete method is a finite volume method based on a finite element approach of representing the geometry.

本问题用RANS方程和κ-ε模型联合求解，离散化是建立在用有限元方法描述几何图形的有限体积法；同时，利用多重网络技术加快收敛速度；

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7、

the meta-model of software evolution process is described the evolution of a complete software process and csp semantic features based on strict reasonable skills and analytical calculations the software evolution process can be a good semantic analysis and testing.

软件演化过程元模型描述了一个完整的软件演化过程，而CSP基于严密的语义特性表达能力和演算推理分析能力可以对软件演化过程进行良好的语义描述分析和检测。

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8、

under the guidance of the concept of ontology, according to the existing data element semantic description method, with xml technology, this paper proposes the data element semantic description specification. ( 2) the data model semantic description method based on the data element.

在本体思想的指导下，根据现有的数据元语义描述方法，采用XML技术，提出了数据元语义描述规范。（2）基于数据元的数据模型语义描述方法。

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9、

based on the representation of unit quaternion to orientation of rigid body, the orientation-singularity is researched in the paper.

基于四元数描述刚体的姿态，对6-SPS并联机器人姿态奇异做了研究，避免了欧拉角描述刚体姿态时的奇异性。

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10、

in the framework of semantic web, an ontology language uses its meta-level ability to describe the relationship of metadata in order to implement the exchange of metadata.

在语义网的架构中，Ontology语言利用自己的元级描述能力来建立元数据之间的联系，从而实现语义的交换。

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11、

the experiment result shows that our method can extract the main knowledge element description and improve greatly the efficiency of the knowledge element indexing.

实验证明，该方法可以为用户提取出文中主要的知识元描述，极大地提高知识元标引效率。

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12、

the new evolution law of void mode damage and its large deformation elastoplastic fem description

新的空洞型损伤演化律及损伤弹塑性大变形有限元描述

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13、

thirdly, we described the way transforming from uml model into code and analysed msf.

接着，我们阐述从UML模型到面向对象代码的转换方法，并分析元描述MSF机制，给出一个代码转换器的原型；

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14、

analysis of soft x ray laser output behavior by using ray matrix

用光线矩阵元描述X射线激光输出特性

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15、

slide block radial drilling machine

滑座式摇臂钻床

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16、

head traverse of radial drilling machine

摇臂钻进给箱横切

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17、

heavy-duty travelling type radial drilling machine

可移式重型摇臂钻床

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18、

movable universal radial drilling machine

移动万向摇臂钻床

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19、

rapid diagnosis for transferring error of radial drilling machine

摇臂钻传动故障快速诊断法

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20、

selected according to the processing operation for drilling radial drilling machine, vertical milling machine for use on the t-slot milling.

根据所加工工序选用摇臂钻床来进行钻孔加工，选用立式铣床来进行对T型槽的铣削加工。

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