三: three位置: seat; place; location; site转换开关: commutation switch; tumbler ...位置转换开关: array position switch天线阵位置转换开关: array position switch位置转换器: position tra ducer; position transducer三位置开关: three position switch; three-position switch控制位置转换: transfer of control station信元位置转换: css cell site switch位置选择旋钮, 转换开关: selector knobq转换开关: q-communication极转换开关: polechanger主转换开关: master switcher转换开关: alter switch; alternation switch; change over switch; change switch; changeover cock; changer; commutation switch; commutator; cos change over switch; diverter switch; interter; inverter switch; invertor; mode selector; on-off switch; over changing switch; permutator; reset switch; rheotrope; seesaw switch; switch key; switch unit; switch valve; switcher; throw over switch; throw switch; transfer lever; transfer switch; tumbler转换开关板: switchboard panel转换开关盒: jack box; switch box; switchbox转换开关匣: switchbox转换开关组: switch bank磁性位置转换器: magnetic position converter数字式位置转换器: digital position transducer比例转换开关: ratio switch波瓣转换开关: lobe switch波长转换开关: wave changing switch; wave-changing switch波导转换开关: waveguide switch; waveguide transfer switch波道转换开关: frequency channel selector