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- main beam direction 主波束方向
- 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。
- Sound beam diameter, refracted angle, beam direction, expected flaws, instrument serial number. 声束直径、折射角、波束方向、预计缺陷、仪器编号。
- 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。
- Complicated mathematical relations exist between beam direction angle and mechanical angle of the antenna pedestal in Cassegrain antenna system discussed in this paper. 文中介绍的卡塞格伦天线系统中,波束指向角度和天线座机械角度有着复杂的数学关系。
- This paper analyzes the effects of amplitued-phyase errors and element failure on antenna gain, beamwidth, beam direction, and sidelobe level in sparse array. 围绕天线阵增益、束宽度、向和副瓣电平等指标，分析了幅相误差、元失效对稀疏阵列天线性能的影响。
- 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。
- Because the adjustment of antenna beam direction is in a very small range, so the effection on antenna sidelobe and beamwidth can be omitted, that is to say, it will not make any effection on other performances of the radar system. 由于对天线波束指向的调整在很小的范围内，故对天线的副瓣及波瓣宽度指标的影响可忽略，从而不会影响到雷达系统的基他性能。
- 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。
- The interference beam directed on the aero boat is the key factor in interference to the satellite communication earth station. 摘要飞艇载干扰波束定向问题是影响对卫星通信地面站干扰效果的关键因素。
- 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。
- electron beam direct write on wafer system 薄片上电子束直接绘图系统
