basic pulsepedestal pulsereference implusereference pulsezero pulse基准: datum standard; criterion; r ...脉冲: impulse; pulse; impulsion; o ...基准脉冲串: reference burst方位基准脉冲: arazimuth reference pulse时基基准脉冲: time-base reference pulse下载手机词典可随时随地查词查翻译