simultaneously_at_the_same_time

1.The main principle of the new process is: firstly , hydrogen sulfide ion is oxidized to polysulfide and hydrogen is released simultaneously at the same time;
该工艺的主要原理为：第一步通过直接电解将硫氢根离子氧化生成较高级的多硫化物，同时制取氢气；
dict.yoduao.com
2.But today's computers typically have a large number of processes and threads running at the same time, and often have multiple processors executing different programs simultaneously.
但是，当今的计算机通常需要同时运行大量的进程和线程，经常还会有多个处理器确实在同时运行不同的程序。
dict.yoduao.com
3.The simulation is not really interested simultaneously in all the customers that will shop during a day, but only in the ones who contend for checkout aisles at the same time.
实际上模拟并不会同时对一天内将要购物的所有顾客感兴趣，而是只对那些要同时争用付款通道的顾客感兴趣。
dict.yoduao.com