| Subject | English | Chinese |
| tech. | circle of simultaneity | 同步圆 |
| electric. | closing simultaneity | 闭合同期性 |
| tech. | geologic simultaneity | 地质同时性 |
| tech. | geological simultaneity | 地质同时性 |
| space | initiating simultaneity test | 起爆同时性试验 |
| space | initiation simultaneity test | 引爆同时性试验 |
| electric. | opening simultaneity | 又称分同期性 |
| electric. | opening simultaneity | 断开同期性 |
| expl. | random simultaneity | 随机同时 |
| chem. | relativity of simultaneity | 同时性的相对性 |
| met. | simultaneity factor | 同时率 |
| met. | simultaneity factor | 同时系数 |
| agric. | simultaneity of ripening | 同时成熟性 |
| earth.sc. | successive simultaneity procedure | 逐次同时法 |
| tech. | tape-processing simultaneity | 带处理的同时性 |
| tech. | three-simultaneities | 三同时 (completion of a project simultaneously with the completion of the facilities for controlling waste water/waste gas and industrial wastes, 指完成工程的同时,完成废水、废气、废渣的处理设施) |