提出一种小型化三频微带天线。
A new triple-frequency microstrip antenna, which operates at 900mhz, 1.
双频、三频正交超声辐照能显著地提高声化学产额，具有明显的增强效应。
Doublefrequency and threefrequency ultrasonic irradiation can significantly improve sonochemical yield with remarkable enhancement effects.
八芯的海洋之心高频更加顺滑细腻，低频质感更好，声场得到更大的提升，三频均衡。
Eight core oceans heart high-frequency smoother and exquisite, low-frequency texture better, acoustic field have the greater ascension, triple frequency equilibrium.
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