This paper conducted a study on vertical vibration table test of the bi-directional beam string structure of the national gymnasium plane size of 11.
传统的模拟地震振动台试验，由于受振动台台面尺寸的限制，平面尺寸一般不大，作者利用多子台振动台台阵系统对国家体育馆双向张弦梁结构屋盖模型平面尺寸11。
Smart antenna using digital signal process technique, produces space directional beam, and utilizes space filter ability for improving the performance of CDMA systems.
智能天线利用数字信号处理技术，产生空间定向波束，利用其空间滤波特性可以提高CD MA系统的性能。
According to the "Big Time Delay" and the "Big Over Hanging Beam" principle, the building was successfully demolished through directional blasting.
通过采用“大时差”和“大悬臂梁”原理，对该大楼成功地实施了定向爆破拆除。
It adjusts the weight vectors in order to optimize the main beam and zero sinking of directional pattern real-time and automatically according to maximize exporting criterion.
其根据最大输出性能准则，实时自动调整加权向量以实现主波束和方向图零点的优化，通过优化期望用户的主波束、对干扰信号实现零陷提高系统的容量与性能。
Based on the research of oil production design of beam bump in directional Wells, we bring forward the principle and method for optimization and set the design model for oil production.
对定向井有杆泵采油设计进行了研究，提出了优化设计的原理和方法，建立了定向井有杆泵采油设计模型。
The directional shift of a semiconductor laser beam has been detected and the effect of optical devices on the stability of optical beam direction are discussed.
最后，通过进一步检测，初步研究了光学器件对光束方向稳定性的影响。
By using a beam of uniform strength, bi directional chirp free tuning of center wavelengths of the fiber grating is realized, and the tuning range up to 12.
本文利用光纤光栅的应变灵敏特性 ，对等强度梁进行了应变标准性测量 ，并与理论值进行了比较。
By using a beam of uniform strength, bi directional chirp free tuning of center wavelengths of the fiber grating is realized, and the tuning range up to 12.
本文利用光纤光栅的应变灵敏特性 ，对等强度梁进行了应变标准性测量 ，并与理论值进行了比较。
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