查询词典 engine block

There is no need to insertion a temporary pacemaker for patients with chronic bifascicular block but without symptoms and atrio-ventricular block. TEAP is a easily way to evaluation atrio-ventricular conduction ability quantizely.

术前无症状不伴有房室传导阻滞的慢性双支阻滞病人不必常规安装临时起搏器，食道心房起搏对评价房室传导功能有量化效果且简单易行。

A series of tri-block copolymers of styrene/tetradecyl methyl acrylate/3-methacryloxyl-propyl thimethoxyl silane was synthesized by atom transfer radical polymerization. The structures of those copolymers were characterized by means of gel permeation chromatography, infrared spectrum, and nuclear magnetic resonance (1H-NMR). Effect of tri-block copolymers on the mechanical properties of glass fiber/polypropylene composites was also investigated.

采用原子转移自由基聚合法合成了一系列新的三嵌段共聚物大分子偶联剂聚苯乙烯－b-聚甲基丙烯酸十四酯－b-聚3-甲基丙烯酰氧基丙基三甲氧基硅烷，通过凝胶渗透色谱、红外光谱和核磁共振(1H-NMR)证实了其结构，并研究了其对玻璃纤维／聚丙烯复合材料力学性能的影响。

A series of copper halides in one, two, or three dimensions have been successfully synthesized such as rhomboid dimers of stoichiometry [Cu2X2L2]n, the tetranuclear species on cubane or stepped cubane tetramers of stoichiometry [Cu4X4L4]n and hexagonal[Cu6X6] grid chains.2 The main strategy in crystal engineering is a secondary building block approach.3 For a given building block, there are two routes to construct frameworks.

在一维、二维或三维的一系列卤化铜已经成功地得到了合成，比如化学计量法[Cu2X2L2]n的长菱形二聚物、化学计量法[Cu4X4L4]n和六边形[Cu6X6]网格链的在立方烷上的四核类或阶梯式立方烷四聚物。[2] 在晶体工程上的主要策略是一种次级构件途径。[3] 对于一给定的构件来说，有两条构件骨架的路线。

The event of collision between Lasha block and Qiangtang block in Cretaceous was too weak to cause the regional tectonic effect, but only produced a little relief topograph and Cretaceous red classic deposit in Central Asia.

拉萨陆块与羌塘陆块白垩纪的碰撞本身表现并不强烈，当然也难以产生区域性的构造影响，只是在准平原化基础上产生一些地形微起伏，出现白垩纪红色碎屑岩沉积。

The pseudo-static test which subjects to horizontal load on the A-type autoclaved aerated concrete block wall was adopted. Reinforced concrete beams were set up at the upper and lower ends of the test block, and the four-bar linkage device was provided to ensure that the top of the wall was only in translatory motion, not in rotation at the level force. Hydraulic synchronous loading device was adopted to simulate the vertical load which was produced by the wall of the housing interlayer.

对A类蒸压加气混凝土砌块墙体采用水平荷载作用下的伪静力试验，试件的上下两端设置了钢筋混凝土梁，通过四连杆装置保证墙体顶部在水平力作用下只有平动而无转动，并采用同步液压加载装置模拟房屋层间墙体作用的竖向荷载。

this paper analyses the basic principle of tpc,compares the error performance in the system which has been applied with tpc with the uncoded system,studies the influences which different block codes and iterative numbers to tpc decode performance.under the circumstances of different iteration numbers and block codes,experiment simulation is carried on.the simulation results indicate that introduction of tpc can get the code gain of 5~6 db.tpc decoding algorithm is simple,and doesn′t have the error floor,the complexity of its hardware implementation is smaller,it is a kind of practical channel coding method.

摘 要：在分析turbo 乘积码的基本编译码原理的基础上，比较了未编码与编码后系统的差错性能，研究了选取不同分量码、不同迭代次数对tpc译码性能的影响。在不同迭代次数与分量码情况下，进行了仿真实验。仿真实验表明，在相同的差错性能条件下，采用tpc码能带来5~6 db的编码增益。tpc译码算法简单，没有错误平层，硬件实现复杂度较小，是一种非常实用的信道编码方式。

When the new underreamer had been put on the special tester under simulated hole reaming,it is found that the cutting-block is retractable in working grooves and the lock-block is on the safe side.

将新型扩孔器放在专用试验台架上，模拟现场扩孔作业，在受力作用下进行地面试验，切削块在工作槽内伸缩自如，锁块安全可靠；切削块完全张开后的直径达到设计要求，泵压差约为2 MPa。

On the base of probabilistic and statistics results of joints and cracks, the Author modifies Block Theory. The sliding probability of Key Block is I A RSTR A CT F2 ? 5.It is put up forward that GM(l,1) Model to predict Amount of rainfall, and Markov Chain to modifY GM( 1,1 )predicting result, and then a theoretical predicting Model of amount of rainfall is firstly built. This model is applied in a situ example. It is proved that the model is very useful to predict amount of rainfall ,when ordinal array of Amount of rainfall changes in unexact index rule.

首次将节理裂隙视为有限长，借助有关岩体节理裂隙概率统计研究成果，对块体理论进行修正，确定了关键块体变为滑动块体概率计算公式为 5、本文提出采用GM（1，1）模型预测降雨量，而采用Markov链进行修正的方法，首次用该方法建立了大气降雨量预测的理论模型，并结合实例进行具体应用，解决了当降雨量的时间序列呈不严格的指数规律变化时，大气降雨量的预测问题。

The wide windows look out on Harlem's invincible and indescribable squalor:the Park Avenue railroad tracks, around which, about forty years ago, the present dark community began; the unrehabilitated houses, bowed down, it would seem, under the great weight of frustration and bitterness they contain; the dark, the ominous schoolhouses from which the child may emerge maimed, blinded, hooked, or enraged for life; and the churches, block upon block of churches, niched in the walls like cannon in the walls of a fortress.

宽大的窗户俯瞰着哈莱姆的破败，它一成不变，难以描述：那里有帕克大街的车轨，在此周围，大约40年前，现今黑暗的社区就开始形成了；那里有无法修复的房子，耷拉着，似乎在承载着其中失败与痛苦的巨大压力；那里有黑暗的、带来坏运气的学校教室，因为从这些校舍里出来的孩子可能是伤残的、瞎眼的、吸毒的或一生愤怒的人；那里还有很多教堂，街区连着街区，教堂的墙壁都装饰着神像，就像加农炮加在堡垒的堞垛上。

Fast Function Blocks The Fast Function Block has 24 inputs which can be indi- vidually selected from the UIM, 12 fast input pins, or the nine Macrocell feedbacks from the Fast Function Block.

快速功能块的快速输入功能块有24个，可印第，vidually从UIM卡，12个快速输入引脚，或9个宏单元的快速反馈功能块选择。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。