very short wave station 超短波电台
The field patterns in RGG are very useful for the design of short millimeter wave and submillimeter wave components based on RGG.
文中给出的矩形槽波导模式图有助于设计基于矩形槽波导的短毫米波和亚毫米波器件。
The big peak is a synthetic wave because those micro-fields transform one after another in very short time during the course of quick heating.
单一大峰是在升温速率较快的条件下，各微区在较短时间内相继发生相变而形成的单一合成波。
Short wave is good for broadcasting very long distances. The short wave signals bounce off the ionosphere that surrounds the Earth, back to the ground and then back to the ionosphere.
短波有利于长距离传输广播节目，短波信号被围绕地球的电离层反射，能在大地和电离层间来回反射。
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