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電磁波頻譜...

The electromagnetic spectrum covers an enormous range of frequencies and energies.電磁波譜包括極大的頻率和能量范圍.Television systems, which transmit 30 picture frames per second, must operate on a broad electromagnetic spectrum.每秒傳輸30幅...

electromagnetic spectrum的音標：electromagnetic spectrum的英式發(fā)音音標為：[??lektr??m?g'net?k 'spektr?m]electromagnetic spectrum的美式發(fā)音音標為：[??l?ktrom?ɡ'n?t?k 'sp?ktr?m]...