您要查找的是不是：
- main beam center 主波束中心
- The crane is connected with the main beam through its under-frame and the truck chassis. 起重机通过其底架与汽车底盘与大梁连接。
- The azimuthal phase term of the LG modes results in helical wave fronts.The phase variation along a closed path around the beam center is . LG模的角向术语来源于螺旋波前，相变量沿着一条封闭路径绕光束中心一周就.
- Luminaire designed to be suspended from a cable with its main beam axis at right angles to the axis of the road. 利用电缆进行悬挂的灯具，其主光轴与道路主轴成直角。
- The main beam of the roof of this palace built in the Ming dynasty was made of precious wood. 这座明代宫殿的房柁用的可是名贵木材。
- The extended part is internal frame, which is pushed by hand to orbit for sending or receiving cargos inside main beam. 伸出部分为伸缩板，手推使之在固定横梁内沿轨道运行接送货物。
- For Vibrating the construction of all kinks of pier, bridge, tunnel, foundati- on of building, post, main beam and various perfabricated components. 适用于各种桥墩、桥梁、隧道、楼房基础、柱、主梁及各种预制构件的振捣施工。
- The main reason of the main beam down deflection was that the most complex stress exceeded the admissible value and achieved the yield limit value. 主梁下挠变形的主要原因是受热引起的最大复合应力超过许用值,达到了屈服极限值,强度不满足要求。
- The antenna diagram approximation model used in our investigations considers constant gain within the full beamwidth of the main beam. 在研究当中，天线图解的近似模型在主要波束的饱和波束宽度范围内，可认为其增益是固定的。
- It is provided with a telescopic bracket.The box beam at the external side of the telescopic part of the bracket is inserted into the square hole in the main beam. 其中，拖架具有可伸缩功能，是通过可伸缩部分外侧的箱形梁插入货台主梁的方孔中，选择箱形梁上孔的位置来实现的。
- It usually has great affection in process of construction of cabled-stayed bridge with variety of the temperature, caused the main beam line form creation deviation in the end. 在斜拉桥施工过程中温度的变化往往对斜拉索的索力产生较大影响，最终导致主梁线形产生偏差。
- It makes the calculation analysis of the integral stability of the whole bridge in the process of tensioned main cable and adjustment main beam stress and the process of tensioned main cable taking the proposed reverse suspension bridge as the object. 以拟定的某反吊桥方案为对象 ,对张拉主缆索调整主梁应力过程及张拉主缆索过程中全桥的整体稳定性作了计算分析。
- The company specializes in production of Model JPKK series endless chain electric block, JKBK flexible single main beam hanged crane, rotary beam hoist, as well as all kinds of motor, carriage, control box, etc. 本公司专业生产JPKK型系列环链电动葫芦、JKBK柔性单主梁悬挂起重机、旋臂吊起重机以及各种电机、小车、控制箱等。
- Technical specifications are all satisfied within required wide frequency range, which include VSWR, main beam width, sidelobe level, gain, and the mutual relation of sum and difference patterns, etc. 在较宽的频带内，对于驻波比，主瓣宽度，旁瓣电平，增益，和 与差方向图对应关系等都得到了满足。
- Deformation of the main beam of the bridge crane is one of primary breakdown.The pre-stressed method not only restores the main beam of the bridge crane , but alos improves its load-bearing capacity . 桥式起重机主梁的下挠变形是桥式起重机的主要故障之一，采用预应力张拉工艺修复，不仅能使主梁下挠得以恢复，而且可以使主梁的承载能力得到提高。
- Some main beam sharping technologies were summarized, and the operation mistake and some different ways to deal with the heads of fibers in the techniques of beam sharping were analysed. 5. 4、总结了国内主要的一些光束整形技术，分析了在各种整形技术中操作误差对激光光纤耦合效率的影响，比较了在整形技术中对光纤端面的不同处理方式对耦合效率的影响。
- Basically, a composite concrete deck consists of a concrete top slab, flanked on each side by concrete main beams, and a concrete middle beam. 组合混凝土梁的基本构成是顶部为混凝土平面,两侧为混凝土主梁,中间为混凝土中梁。
- The main impediment to growth is a lack of capital. 影响发展的主要障碍是缺乏资本。
- The research of beam center measurement in container inspection system 集装箱检测系统中射线束流中心测量方法的研究
