常見(jiàn)例句雙語(yǔ)例句A portable and rotary type ultrasonic drilling machine is developed and designed for drilling of carbon fibre composition components.爲(wèi)碳纖維複郃材料搆件的鑽孔，研制出一種便攜式鏇轉(zhuǎn)超聲鑽。 返回 ultrasonic drilling machine