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The static model of torsion joint is based on that of bending joint. The effects of structure parameters inside air pressure, initial angle, rube average radius, rube shell thickness on the turning angle are analyzed and the following conclusions are drawn: the relationship between the angle of torsion joint and the inside air pressure is basically linear, the angle of torsion joint increases with the initial angle and rube average radius, the angle of torsion joint decreases while the rube shell thickness increases. The kinetic equation is built for torsion joint. Simulating experiment implies that the time of inflating and deflating process is extremely shorter than that of kinetic process. So the pneumatic process can be ignored in actual system design and control. The factors that affect the dynamic features of torsion joint, such as shell thickness of rubber tube, average radius, initial angle, connector's outlet area, moment of inertia and viscous damping coefficient, are analyzed and the following conclusions are drawn: the change of rube shell thickness has no effects on the dynamic process of FPA inside air pressure while greatly affects the turning angle of torsion joint; when the rube shell thickness is small, the torsion joint has a bigger turning angle, no overshoot and long risetime, when the shell thickness is big, the turning angle of torsion joint is small, but has high response speed, overshoot and low shock; when the rube average radius increases, the turning angle of torsion joint increases and the overshoot increases too; when the initial angle of torsion joint is big, the turning joint is big, the overshoot is small and shock is low, but the risetime is big; the connector's outlet area affects the dynamic process of FPA inside air pressure greatly, but has no effects on the dynamic process of turning angle; moment of inertia and viscous damping coefficient have no effects on the dynamic process of FPA inside air pressure, but affect the dynamic process of turning angle greatly.

在弯曲关节模型推导的基础上，建立扭转关节的静态模型，并分析了扭转关节内腔压力，初始转角，橡胶管平均半径，橡胶管壁厚等参数对关节转角的影响，得出扭转关节的转动角度与充入FPA内腔的压缩气体压力之间基本呈线性关系，扭转关节的转角随初始角度和橡胶管平均半径的增大而增大，扭转关节的转角随橡胶管壁厚的增大而减小的结论；建立了扭转关节的动力学方程，仿真实验表明FPA的充放气过程与扭转关节的动力学过程相比时间极短，在实际系统设计和控制过程中可以忽略不计；分析讨论橡胶管壁厚，平均半径，初始角度，气体节流口面积，转动惯量，粘性阻尼系数等因素对扭转关节动态特性的影响，得出橡胶管初始壁厚的变化对扭转关节FPA内腔压力的动态响应几乎没有影响而对关节转角的响应曲线影响比较明显，壁厚较小时，关节可以得到较大的转角，并且转角的响应曲线没有超调，但上升时间长，壁厚较大时，关节转角变小，响应加快，但是有超调和轻微振荡现象，橡胶管平均半径越大，得到的关节转角越大，但是转角响应的超调量也随之增大，FPA的初始角度越大，关节的转角越大，并且超调量减小，振荡减弱，但是上升时间增大，管接头出口面积的大小对关节FPA内腔压力的建立过程影响较大，但对关节转角的动态响应几乎没有影响，转动惯量和粘性阻尼系数对FPA内腔压力的动态过程几乎没有影响而对扭转关节转角有较大影响等结论。

The appearance of heterojunction high electron mobility devices has made the new vigor poured into the development of GaAs MMICs. Pseudomorphic high electron mobility transistors have outstanding high-frequency characteristics, power characteristics and low-noise characteristics. And these merits have made the PHEMTs one of the most promising devices.

异质结高电子迁移率器件的出现给GaAs MMIC的发展注入了新的活力，赝配高电子迁移率晶体管具有优异的高频特性、功率特性和低噪声特性，使其成为现今微波单片集成电路发展中最具应用前景的器件之一。

The trilobe 355 catalyst(Fe-K-Mg-Ce-Mo) for ethylbenzene dehydrogenation which had the characteristics of high catalytic activity,high selectivity,low water-oil ratio ,high side pressure,and good water resistance was developed.

开发成功了具有高活性、高选择性、低水油比、高侧压强及抗水性能好等特点的三叶型355催化剂（Fe－K－Mg－Ce－Mo）。

Because of the high assay and good suspension, 70% Niclosamide wettable powder is of high competitiveness in the market, also has high effect and low toxicity.

可湿性粉剂组方独特，悬浮性可达85％以上，高于世界卫生组织规定的50％标准。70%杀螺胺可湿性粉剂产品含量高、悬浮性好，具有较强的市场竞争力，同时具有高效、低毒等特点。

Two-way power measure and electricity stealing proof,high accuracy, high reliability, high overload, low power consumption, light weight etc

双向功率测量及计数、防窃电、高精度、高可靠性、高过载、功耗低、重量轻

About Ningbo Yinzhou Zhenchuan液压机械厂, is a production, management, scientific research as one of professional-type tube manufacturers, production of domestic and international series of high, medium, low-pressure hose connector business, the Company has a group of high-quality , High-tech design and professional workforce.

宁波市鄞州振川液压机械厂，是一家生产、经营、科研为一体的管件专业型厂家，生产国内及国际系列高、中、低压胶管接头的企业，本公司拥有一批高素质、高技术的专业设计人员和职工队伍。

ABSTRACT The magnetrons are characterized by high power output, high efficiency and low cost so that they are used as leading high-power microwave source.

磁控管具有输出功率大、效率高和成本低的特点，在微波电子管中被用作为一种主要的大功率微波源。

ABSTRACT The magnetrons are characterized by high power output, high efficiency and low cost so that they are used as leading high-power mi...

磁控管具有输出功率大、效率高和成本低的特点，在微波电子管中被用作为一种主要的大功率微波源。

FT writes that ... The warning came as wheat prices on Monday jumped to an all-time high, soybean prices hit a fresh 34-year high and corn rose to an 11-year high on strong demand and tight supplies reflected in extremely low global inventories....

FT 写到…周一小麦价格涨至历史最高，豌豆价格达到34年最高，玉米创11年新高，警告了极低的全球库存导致的供应不足和需求旺盛情形。

The warning came as wheat prices yesterday jumped to an all-time high, soyabean prices hit a fresh 34-year high and corn rose to an 11-year high on strong demand and tight supplies reflected in extremely low global inventories.

当前，由于需求强劲以及供应吃紧，小麦期货价格在昨日跃升至历史高点，大豆价格则触及34年新高，玉米价格也升至11年高点。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。