预放大器 meaning in English
preliminary amplifier
Examples
- Effect of amplified spontaneous emission in heaven - i pre - amplifier
天光一号预放大器中的放大自发辐射效应 - Film 35 mm ; preamplifier for optical sound , general data for measuring
35mm胶片.光学声音的预放大器.测量用一般数据
preliminary amplifier