The OFP and OFD can not only improve the wide-angle scanning ability of the antenna, but also increase the engineering feasibility of the SFOC antenna system.
二者的确定不仅改善了SFOC天线系统的扫描特性 ，而且提高了它的工程可实现性。
It has some important advantages such as wide Angle scanning, beam shaping, compact structure and low cost. These advantages make them very well suited to a number of military or civil applications.
它具有扫描角度宽，便于波束成形，结构紧凑、价格便宜便于大量生产等优点，所以在军事上和民用上有着广泛的应用前景。
And polarizing microscope, wide-angle X-ray diffraction (WAXD) and differential scanning calorimeter (DSC) were used to study the crystalline of PLA membranes prepared at different conditions.
并且借助于偏光显微镜、广角X-射线衍射仪（WAXD）和差式扫描量热仪（DSC）研究了不同成膜条件下膜的结晶情况。
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