例句與造句

1. The presently active arc is located on what appears to be oceanic crust whereas the associated subduction trench is underlain by continental crust.
2. The gases are ionized into chemically active arc discharge, a welding torch, a laser, an electron beam, or other means.
3. The tectonic setting of this region is unique in that it is the only global example of an active arc-arc collision consuming an oceanic basin via subduction in two directions, between microplates Halmahera Plate and Sangihe Plate.
4. It's difficult to find active arcs in a sentence. 用active arcs造句挺難的