1. pitting

1. 点蚀：氧气所引起的腐蚀呈点蚀(pitting)状态有愈钻愈之倾向,若未有效止可能穿透管壁而造成穿孔、泄漏. 另外尚有二种电磁(cell)亦促成腐蚀. 不同金属接合处因金属不同之电位产生流电腐蚀(galvanic corrosion).

2. 凹陷：(三)指(趾)甲在其他皮肤疾患时变化:1.干癣:通常有点状凹陷(pitting),偶可见指甲之乳状或黄色混浊及高低不平,onycholysis亦可发生. 2.扁平苔癣:通常为纵裂或线状凹陷,极少数患者可有指甲萎缩或永久消失.

3. pitting

3. (疲劳)点蚀：点划线 chain dotted line | (疲劳)点蚀 pitting | 垫圈 gasket

1. the formation of small pits in a surface as a consequence of corrosion

    Synonym: roughnessindentation