simultaneous use同用simultaneousadj.同时发生的；同步的simultaneously realizable可同时实现的simultaneous construction同步施工simultaneous input output同时输入输出,并行输入-输出Simultaneous detemination同时测定simultaneous spectrometer联用光谱仪simultaneous detrmination紫外分光光度法simultaneous equations.联立方程simultaneous verification同时检证simultaneous interpreting同声翻译simultaneous announcement同时发表