pipe pushing造句

例句与造句

1. The notion of a stiff pipe pushing the bit straight down is outdated.
2. Pipe pushing machines were used to drill into the approaches to bridges or embankments and left ready for instantaneous demolition.
3. The drills and pipe pushing machines were used to bury a series of diameter pipes, each at a shallow angle to a maximum depth of about.
4. It's difficult to find pipe pushing in a sentence. 用pipe pushing造句挺难的