nailguns造句

例句与造句

1. the use of caseless propellant charges as the power source for projectiles and for explosive percussion tools such as nailguns is now established .
   目前，用无壳药柱作为弹丸及火药推进器（如铆钉枪）的能源已被认定。
2. It's difficult to find nailguns in a sentence. 用nailguns造句挺难的