划槽

yǔ chuán tǒng huá cáo fǎ xiāng bǐ jī guāng huá cáo yǒu hěn duō yōu diǎn

与传统划槽法相比，激光划槽有很多优点。

Comparing with the traditional slotting, the laser slotting has a lot of advantages.