提出一种小型化三频微带天线。
A new triple-frequency microstrip antenna, which operates at 900mhz, 1.
三频均有提升,是一款不可多的好线!
Triple frequency are ascending, is a fully not much good line!
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.
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