pulsed-source spectrophone脉冲: impulse; pulse; impulsion; o ...源: source; fountainhead分: component光电话机: photophone光电管脉冲源: photocell emitter下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:脉冲源分光电话机，即可在微信中查询翻译
