[电 电子] 预选器
器 【中文名称】:预选器 【英文名称】:preselector 【定义1】: 步进制电话交换机中,连接用户线,反映用户忙闲状态,供用户摘机时选用空闲第一选组器的设备。 【来源】: GB/T 1417-1978(术语标准
预选机
... 通过预选 PRESET 预选机 preselector 预选开关 preselection switch ...
前置选择器
... 药剂天平 prescription balance 前置选择器 preselector 预设计数器 preset counter ...
高频预选滤波器
... 高频预热 {工} radio-frequency preheating 高频预选滤波器 preselector 高频约束 {等离子} high-frequency confinement (HF confinement) ...
preselector:
pre- + selector
A preselector is a name for an electronic device that connects between a radio antenna and a radio receiver, to prevent trouble-causing out-of-tune frequencies from passing through to the radio receiver or preamplifier that otherwise would be directly connected to the antenna.