英语词汇“essential optional service”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	essential optional service
释义	essential optional service 基本选项服务
随便看	nonlinear sampling nonlinear saturation non-linear saturation non-linear scale nonlinear scale nonlinear scales nonlinear scanning nonlinear scattering nonlinear schr?dinger equation non-linear Schrodinger equation nonlinear Schrodinger equation nonlinear science nonlinear seismic analysis non-linear semi-group nonlinear sensor non-linear sequential estimation non-linear series resistor nonlinear servomechanism non-linear servomechanism non-linear servomotor nonlinear servomotor nonlinear servo theory non-linear shift register nonlinear shift register non linear shift register 嫾嬁嬂嬄嬅嬆嬇嬉嬎嬏拐卖拐子拐孤拐带拐弯拐弯儿拐弯抹角拐打拐掳拐杖