查询词典 frame-saw

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。

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。

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 invention contains following apparatus: display main body; base setting a combination groove thereon; a frame for connecting the display main body and base; rotating apparatus setting under the frame and connecting on the combination groove of the frame for making the frame left-and-right rotate relative to the base; an inclination preventing element for prevent the frame up-and-down inclination with the rotatable gemel as center.

本发明包含下述装置：显示器主体；在其上面设置了结合槽的底座；用于连接上述显示器主体和底座的支架；设置在上述支架的下侧，结合在上述支架的结合槽上，使支架能够相对上述底座进行左右转动的旋转装置；用于防止上述支架以旋转铰链为中心上下倾斜的倾斜防止元件。

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 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。

Synchronization in Ethernet networks could be done using shorter preambles if there were only twisted pair cables; but since the standard was made for coaxial cables, the preamble needs to be longer because the first transmitted bytes of a frame are damaged on a coaxial cable.

如果以太网中只是用双绞线互联的话，以太网的同步可以使用更短的前导码；但是因为以太网标准是因同轴电缆而定义的，前导码需要更长，因为在同轴电缆上，一个frame中刚开始发送的几个字节是会被破掉的（这里很奇怪，难道同轴电缆在发送有效的信号的时候，刚开始的数据是有损的吗？

They will help your students improve their abilities to –- reflect before writing - organize and classify - provide detail without padding - use technical terminology correctly - avoid unnecessary words - spell correctly- take useful notes while they read and during your lectures This book will help teachers --- get what they want from a writing task - frame their assignments more precisely - correct student papers more quickly and efficiently The new second edition offers activities and strategies which involve technology (word processing, presentation programming, the Internet, and e-communications), differentiated instruction, and brain-based learning .

他们将帮助学生提高他们的能力-反映在写作-组织和分类-提供无填充细节-正确使用的技术术语-避免不必要的词-拼写正确，采取有效的阅读和笔记，而他们在你讲课，这本书将帮助教师---得到什么他们从写作任务希望- frame课业more精确-正确的学生论文更快，更有效的新的第二版提供的活动和战略，包括技术（WORD处理，演示编程，互联网和电子商务通讯），差异教学，脑为基础的学习。

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。

Mortise-and-tenon joints but construction gets interesting when you start on the internal web frame.

榫和，接合，但有趣的建设得到当您的内部网络案件frame。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。