[网络] 回线截频特性;回线截止频率特性 cut off characteristic: 截止特性square cut off characteristic: 平方截止特性meander loop cut-off: 河套裁弯loop cut: 弧形切入loop-cut: 弧形切入; 切向边线后切向篮下下载手机词典可随时随地查词查翻译