查询词典 swivel bridge

In addition, for the same power capability, the cascaded converter requires less number of main power components such as main valves and main diodes.In this paper, cascade H-bridge converter with CPS-SPWM technique has been proposed, which is the combination of cascade structure and CPS-SPWM technique.

本文提出了基于CPS-SPWM技术的级联H桥型多电平变流器，它是CPS-SPWM技术与级联H型变流器拓扑结构的结合，同时具备二者的优点，在大功率变流器领域具有很好的应用前景。

We have the first - class production technology and scientific testing way . Our products strictly complywith national standard GB5237 - 2008. The two main brands --- Jianya and Renhehainuo , contains followdeseries products : 70 , 70B , 828 , 90 , 2000 series sliding casement window ; 55 , 58 , 63 , 66 , 70 , 80broken bridge insulation profiles ; kinds of flat - open door , artistic door , mute door , ground - springdoor , aluminum solar rail and a variety of industrial profiles .

本公司拥有一流的生产工艺和科学的检测手段，严格按照国标GB5237-2008组织生产，公司主要生产建亚、仁和海诺两大品牌，产品有：70、70B、828、90、2000系列等推拉平开窗；55、58、63、66、70、80断桥隔热型材；各系列：平开门、艺术门、静音门、地弹门、太阳能支架及各种工业型材。

The idea that the casing shoe resistance and the crushing strength of the LCM must be considered when design the density of the drilling fluids is presented. It holds that the surface pressure should be junior to the crushing strength of LCM, in order to prevent the formed bridge plug from crushing.

提出设计井内堵漏钻井液密度时，必须同时考虑套鞋处破漏压力和桥接材料的抗压强度对井内压力的限制；认为提高压力敏感性裂缝地层承压能力的堵漏作业时，井口压力应不超过桥接材料的抗压强度，以保证裂缝内已形成的堵塞隔墙不被破坏。

Aiming at the existing situation that it is high difficulty of using cradle casting construction of continue box beam bridge,it introduces the laying out methods of deform detection point and pressure detection point in the construction of the project,and analyses the detection effect.

针对连续箱梁桥采用挂篮现浇悬臂施工难度大的现状，介绍了其工程施工中变形测点和应力测点的布置方法，并分析了其监控结果，通过现场施工，证明了该桥的施工控制达到了设计要求。

Features of the interchange bridge construction at the cross of two highways are introduced; construction essentials such as foundation treatment,insurance of prestress system and arrest of upward mandrel are analyzed; in-situ casting of the prestress continuous box beam and continuous core slab under full framing above soft clay foundation is presented.

文章介绍了马芜高速芜湖东互通立交工程的工程特点，分析了地基处理、预应力体系安全、防止芯模上浮等施工要点，阐述了软基上预应力连续箱梁及连续空心板满堂支架法现浇施工技术。

Dental crown and fixed bridge could be fabricated by wax mold casting with pure titanium which has excellent biocompatibility, physical and mechanical properties.

将工业上的熔模精铸工艺和金属钛优良的生物、物理、机械性能结合起来，制作口腔科精密的钛冠桥修复体，具有良好的应用前景。

The castle gate was shut, the bridge was drawn up.

城堡大门已闭，桥已吊起。

Approaching the complex over a wooden bridge, which arcs over the sacred Isuzu river, one finds no obvious signs of structures, but rather hills of cedar, cypress and pine.

跨过横亘在神圣的五十铃河上的一座木桥，走近神宫，你看不到明显的建筑印记，只能看到满山的雪松、柏树和松木。

Cell surface membrane proteins bridge cellular inner world and surrounding circumstance together, which play an important role in cell physiological function.

细胞表面膜蛋白是沟通细胞内部与外环境的桥梁，对于细胞行使正常的生理功能非常重要。

Suitable for all resistance strain gauge load cell in bridge type.

适用于所有电阻应变桥式称重传感器。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。