| Subject | English | Chinese |
| met. | double compression | 两次压制 |
| met. | double compression | 双效〔两次〕压制 |
| met. | double compression | 双重压制 |
| auto. | double compression fitting | 双重压紧管接头在拧紧时，螺母的突出部分紧压在接头相对应的斜面上而保证密封 |
| met. | double-compression method of ramming | 双向压缩捣实法 |
| seal. | double-compression seal principle | 双重压缩密封原理 |