传号电键, 业务线电键的英文

• order wire speaking key

• 传号    mark; marking; call
• 电键    keyset; key; manipulator; te ...
• 业务    vocational work; professiona ...
• 线    thread; string; wire
• 业务线电键    call circuit key
• 传号电键    order key
• 指令[呼叫]按钮, 传号电键    order button
• 信号电键    signaling key
• 指令按钮 命令按钮 传号电键 呼叫按钮    orderbutton
• 电键    keyset; key; manipulator; telegraph key; key button
• 滑线电键    meter key
• 联络线电键    order wire key
• 同线电话振铃电键    party line ringing key
• 业务线    call circuit
• 按电键    keying
• 单电键    singlet linkage
• 电键，键    key
• 电键板    electric switch board; electric switch-board; keyboard
• 电键法    key method
• 电键管    keyer tube
• 电键盒    ke box; key box
• 电键架    key-frame
• 电键排    strip of keys
• 电键盘    key board; key shelf; key-shelf
• 电键器    keyer