查询词典 reference frame

The main jobs of this paper are as followed: 1 The reuse of the frame design technology for aircraft assembly fixtures is researched. a frame line part library is built with the templet driven technology, the reuse of the frame line part come true by the tools for instantiation and instance modification. The design resources are effectively used, some repeating work is cut. 2 Two methods to obtain the assembly feature are proposed: the straight way by the Enumeration method and the indirect way by project features to the assembly plane. All of the assembly features of the frame and the adjustable bearings are obtained by these two methods which makes the frame automatic assembly technology for aircraft assembly fixtures come true. 3 The frame automatic assembly technology aircraft assembly fixtures based on assembly features is researched. A binary tree assembly model is used to express the assembly information of the frame for aircraft assembly fixtures, the automatic assembly between the frame, the aircraft and the adjustable bearing is completed within the three steps: distribute, obtain and evaluate assembly feature. Finally, the efficiency of the frame assembly design is proved. 4The frame interpart modeling technology for aircraft assembly fixtures is researched, the intersection methods are concluded and the arithmetic of the single-cut, double-cut and inter-cut intersection is proposed, the interpart fast modeling of the frame design for aircraft assembly fixture come true. 5Based on the researches mentioned before, a sub-system of frame fast design for aircraft assembly fixture is developed on CATIA. The sub-system is used to design the aircraft assembly fixtures in a large aeronautics corporation and make a good- effect.

论文的主要工作如下： 1研究了飞机装配型架骨架设计重用技术，在总结归纳骨架线框结构类型的基础上，应用模板驱动的方法建立了骨架线框库，通过骨架线框零件的实例化和离线编辑实现骨架线框的重用，有效利用设计资源，减少重复劳动； 2提出穷举几何对象的装配特征直接获取方法，遍历零件模型的几何对象，从中捕捉所需装配特征，该方法简捷、高效；提出向装配面投影的装配特征间接获取方法，该方法在现有特征基础上生成装配特征，解决了部分装配特征难以直接获取的问题； 3研究了基于装配特征的飞机装配型架骨架自动装配技术，采用一种二叉树装配模型表达骨架的装配关系，并通过装配特征的分配、获取和赋值三个步骤，实现了骨架分别与飞机产品和可调支承的自动装配，避免了繁琐的人工交互操作，提高了骨架设计的效率和规范化程度； 4研究了飞机装配型架骨架零件间建模技术，在总结归纳骨架元件相贯处理方式的基础上，提出了骨架元件单剪切相贯、双剪切相贯和互剪切相贯的实现算法，简化了骨架相贯处理的过程； 5基于以上研究，在CATIA平台上开发了飞机装配型架骨架快速设计子系统，并应用于某大型航空企业的装配型架设计，提高了设计效率和设计质量。

On moving base, a new initial alignment algorithm for strapdown inertial navigation system is proposed. In the algorithm, two special inertial frames, the initial-time inertial frame (i0 frame) and the initial-time SINS body inertial frame (ib0 frame), are defined and are selected as calculation reference frames, then, the calculation of initial alignment direction cosine matrix is expanded into three parts:(1) the DCM between i0 frame and the navigation frame will be easily obtained via local geographical coordinates and initial alignment time;(2) attitude updating using gyro samples gets the DCM between SINS frame and ib0 frame;(3) by explaining SINS specific force equation in SINS body frame, the relation between velocity log, accelerometer measurement and gravity acceleration is established to achieve the constant DCM from ib0 frame to i0 frame.

在运载体运动情况下，提出了一种适用于捷联惯导系初始对准的新算法，该算法以惯性空间为参考基准，即建立了初始时刻惯性坐标系（i0系）和初始时刻捷联惯组惯性坐标系（ib0系）两个惯性坐标系，将初始对准姿态矩阵的实现分解为三部分：（1）通过地理位置和初始对准时间求解i0系至导航坐标系的变换矩阵；（2）使用姿态更新算法实时计算捷联惯组相对于ib0系的变换矩阵；（3）通过惯导比力方程变形，获得测速仪辅助测量、加速度计输出和重力加速度之间的关系，从中可以求解出从ib0系至i0系的常值变换矩阵。

The calculation of initial alignment direction cosine matrix between SINS body frame and navigation reference frame is expanded into three parts:(1) the DCM between i0 frame and n frame is easily obtained via local geographical coordinates and initial alignment time;(2) by expressing SINS specific force equation in b frame and by the aid of external velocity log, the constant DCM from i(subscript 0) frame to i0 frame is achieved;(3) attitude updating using gyro samples gets the DCM between b frame and i(subscript b0) frame.

将捷联惯组坐标系与导航坐标系之间的初始对准姿态矩阵的实现分解为三步骤：(1)通过地理位置和初始对准时间求解i0系至n系的变换矩阵；(2)通过惯导比力方程变形，引入刚速仪速度辅助，求解从i(下标 b0)系至i0系的常值变换矩阵；(3)使用姿态更新算法实时计算b相对于i(下标 b0)系的变换矩阵。

2 Aids to Interpretation In these Terms and Conditions and in the Contract Details, unless the contrary intention appears; words denoting the singular include the plural and vice versa; a reference to any one of an individual, corporation, partnership, joint venture, association, authority, trust or government includes any other of them; the headings are for convenience only and do not affect interpretation; a reference to any instrument (such as a deed, agreement or document) is to that instrument (or, if required by the context, to a part of it) as amended, notated, substituted or supplemented at any time and from time to time; a reference to a Party is a reference to a party to the Agreement and includes that Party's executors, administrators, successors and permitted assigns; a reference to a clause or attachment is to a clause (including sub-clause, paragraph, sub-paragraph or further subdivision of a clause) or attachment of or to these Terms and Conditions; a reference to any legislation or legislative provision includes any statutory modification or re-enactment of, or substitution for, and any subordinate legislation under, that legislation or legislative provision; where an expression is defined, another part of speech or grammatical form of that expression has a corresponding meaning; a reference to "US$" or "US Dollars" is a reference to the currency of the United States of America.

1.2艾滋病的解释在这些条款和条件，并在合同中的细节，除非相反的意图似乎；的话指的奇异包括复数，反之亦然；提及的任何一个个人，公司，合伙，合营，协会，主管部门或政府的信任，包括任何其他人；标题只是为了方便起见，并且不影响解释；一个参考的任何文书，是该文书的（或者，如果所要求的背景下，一个它的一部分）修订， notated ，取代或补充，在任何时间，从不时；一个参考一党是一个参考，以协议的当事方和包括党的执行者，管理者，继承人和允许的受让人；一个参考的条款或附件，是一条第（包括子第，段，分段或进一步细分的一个条款），或扣押，或这些条款和条件；一提到任何立法或立法条文包括任何法定修改或重新制定的，或替代，以及任何附属法例下，即立法或立法条文；在1表达的定义是，另一部分言论或语法形式的表达有一个相应的意义；中提到&美元&或&美元&是一个参考的货币美利坚合众国。

Various 3D embossed paper frame; all kinds of plastic photo frame, picture frame, painting shall also have diverse religious paintings respectively; all kinds of aluminum alloy frame; various plastic mini photo frame; various Pen Holder Photo Frame and clock; Pen Holder are sailing, calendar, and that of gold or silver Pegasus, all kinds of athletes, etc. series; various car models to display frames; player card display box; the United States 50 Chau coin collection box Memorial; clock categorization single box ; double frame; three-box series.

各种3D纸浮雕画框；各种塑胶相框，画框，画款多样也有宗教类的画款；各种铝合金相框；各种塑胶迷你相框；各种笔座相框及时钟；笔座有帆船，万年历，金色或银色的飞马，各种运动员等等系列；各种小轿车模型展示相框；运动员纪念卡展示框；美国50洲钱币收藏纪念框；时钟分类有单框；双框；三框系列。

The polysemous development among the three verbs is explained in terms of the hypotheses about the frame-to-frame transferring and the conceptual schema requirement for triggering the individual verb in a frame to be transferred into another frame. Furthermore, among the three verbs, only biaoshiI is a fully representative member of the source domain, i.e., the Statement frame, and thus capable of being extended to other domains, i.e., the Encoding and the Evidence frames. Here, lexical membership in the source frame or frame-representativity is the key to semantic extension.

为了解释这三个动词语义差异的现象，我们指出了框架到框框间转换的假设和让一个动词从一个框架移动到另一个框假所需的概念基模要求，并且进一步提出「框架代表性」(frame-representativity)的原则，说明「表示」做为「来源领域」最具代表性的一个词汇，因此可以从「陈述性的框架」延展到其他的框架。

The video coding method includes the steps of dividing input frames into one final low-pass frame and at least one high-pass frame through a motion compensated temporal filtering, coding the final low-pass frame and then decoding the coded final low-pass frame, re-estimating the high-pass frame by using the decoded final low-pass frame, and coding the re-estimation high-pass frame.

所述视频编码方法包括以下步骤：通过运动补偿时域滤波将输入帧划分为一个最终低通帧和至少一个高通帧；对最终低通帧编码并随后对编码的最终低通帧进行解码；通过使用解码的最终低通帧重估所述至少一个高通帧；以及对重估的高通帧编码。

The results indicated that all children(age 8, 9, 10 and 11) showed same self-reference advantage as adults; There was no significant difference between self-reference and mother-reference, but significant difference between self-reference and teacher-reference, and also between self-reference and friend-reference.

结果表明8、9、10、11岁儿童和成人表现出了自我参照编码在促进记忆上的相同优势，自我参照和妈妈参照无显著差异，而老师参照和朋友参照两者与自我参照的差异显著。

As for frame synchronizer, the recognizer of the frame pattern and its performance are analyzed in details. The probability of catching frame pattern upon one pass is deduced. Based on these, the relationship between optimum frame pattern length and the frame length , the allowable error tolerance and the channel errors, the protecting parameter α、βand the threshold level are derived. Consequently, a new type of adaptive frame synchronizer is presented.

对于帧同步器，对帧同步检出及其性能进行了详细分析，推导了帧同步一次通过捕获概率，导出了最佳帧同步码组长度与帧长之间的关系，误差门限与信道误码之间的关系，以及校核帧数α、保护帧数β与误差门限之间的关系，进而提出了一种新颖的自适应帧同步实施方案。

Usually set up Newton's first law of inertial frame of reference as a frame of reference, so this law is defined in practice this important concept of inertial frame of reference.

通常把牛顿第一定律成立的参照系成为惯性参照系，因此这一定律在实际上定义了惯性参照系这一重要概念。

Putt your way through 36 fun-filled holes of minigolf on 3D designed courses with elevated greens, bunkers, bridges and water hazards, among other crazy obstacles.

您的推杆方式，通过36个有趣的填孔迷你的三维设计的课程，以提升绿党，掩体，桥梁和水的危害，除其他疯狂的障碍。

Some participles can be used either as attributes or as predicatives.

有些分词既可当定语用，也可当表语用。