1. Stable arc, less spatter and deep penetration can ensure welding quality well. 电弧稳定，飞溅较少和熔透深，可确保焊接质量良好。
2. The coating of cement with a strong penetration and excellent adhesion, high hardness, good adhesion between the layers. 该涂料对水泥具有极强的渗透力和极好的附着力，硬度高，层间附着力好。
3. Tool store also connects marketing through the different assortments, through customer penetration and new possibilities in the marketing channel to end customers. 连接工具商店也通过不同的营销组合，通过客户的渗透和新的可能性的营销渠道，以高端客户。
英英解释
n.
1. an attack that penetrates into enemy territory
2. clear or deep perception of a situation
3. the act of entering into or through something
4. the ability to make way into or through something
5. the depth to which something penetrates (especially the depth reached by a projectile that hits a ta
6. the act (by a man) of inserting his penis into the vagina of a woman
