例句與造句

1. RC drilling proved much faster and more efficient, and continues to improve with better metallurgy, deriving harder, more durable bits, and compressors delivering higher air pressures at higher volumes, enabling deeper and faster penetration.
2. Although RC drilling is air-powered, water is also used to reduce dust, keep the drill bit cool, and assist in pushing cutting back upwards, but also when " collaring " a new hole.
3. It's difficult to find rc drilling in a sentence. 用rc drilling造句挺難的