- The hydraulic feedback subsurface pump with double plungers, which is developed on the basis of conventional subsurface pumps is a special pump for viscous oil recovery.
- He is working double tides to finish his essay.
- I do not realize it is a double feature.
- Double agents live in a perpetual state of fear.
- I want a double room with a view.
- He was so fat that he had a double chin.