短語(yǔ)詞組短語(yǔ)fundamental mode cutoff wavelength 基模截止波長(zhǎng)waveguide cutoff wavelength 波導(dǎo)截止波長(zhǎng)cutoff wavelength in ir 紅外截止波長(zhǎng)equivalent cutoff wavelength 等效截止波長(zhǎng)ir cutoff wavelength 紅外截止波長(zhǎng) 返回 cutoff wavelength