after etching meaning in English

残余腐蚀
后腐蚀
后侵蚀

Riscpc support is incomplete and will be removed after etch
对于riscpc rpc的支援并不完善且会在etch之后移除。
Methods ： to treat teeth with fluoride treatments before or after etching
方法：在酸蚀前后分别用氟化泡沫对牙釉质进行氟化处理。
It provides no upgrade path for these obsolete packages . while nothing prevents you from continuing to use an obsolete package where desired , the debian project will usually discontinue security support for it a year after etch s release
它将不会再提供这些已遭废弃的套件任何的升级途径，虽然我们并不会禁止您企图继续使用这些已遭废弃的套件，但依惯例，在etch发布的一年之后debian专案将不会再针对它们继续提供安全上的支援