chemical etching

• 化学浸蚀,化学侵蚀

chemical etching的用法和样例：

例句

1. Chemical weathering was beginning to attack the unweathered bedrock.
   化学侵蚀作用开始攻击还未侵蚀的岩床。
2. The wall must be protected against chemical attack from highly corrosive components of the combusting gases.
   必须把室壁保护起来以防止来自燃气的高度腐蚀性成分的化学侵蚀。
3. Depending on the system specified, these products provide increased chemical resistance to strong acids, salts, and solvents, and hydrofluoric acid exposure.
   根据系统的特性，这些产品可以表现更好的耐强酸碱，溶剂和氢氟酸化学腐蚀。