etchern.蚀刻师；腐蚀铜版制作者etchv.蚀刻；铭刻；鲜明地描述；流露出etch solution test颜料耐蚀试验etching simulation腐蚀模拟etch straightening张力变形法矫形etching coefficient腐蚀系数etching orientation腐蚀定向etched-out fabric腐蚀镂孔印花织物etched foil process腐蚀法etched circuit card印刷电路板etching gas mixture腐蚀用气体混合物etch-resist resin光致抗蚀剂树脂

1. The corrosion pits on the blade surface contributed to such failure as an additive factor.
   叶片表面的腐蚀坑是其疲劳断裂的另一促进因素。
2. The damage of sub-surface was very similar to the damage of the surface, mainly with a few oxidation eroding pits.
   次表层上主要分布着少量细小的氧化腐蚀坑，次表层和表层的失效非常吻合。