More often , all of the materials etchant have a finite etch rate.

剂中的材料都具有一定的刻蚀速率.

After the metal or alloy has been etched the chemical etchant is preferably rinsed with an organic solvent or more preferably with water to remove traces of the chemical etchant.

在金属或合金，自此铭刻的化学腐蚀剂，是最好的冲洗，并用有机溶剂或水多，最好以消除化学腐蚀剂的痕迹。

Additionally, the quantity of copper dissolving in FeCl 3 etchant and regeneration of spent etchants were also investigated.

同时对蚀刻液的溶铜能力及失效蚀刻液的再生进行了初步的研究。

This is a subtractive process that uses photolithographic techniques to define the aperture pattern, and then applies an etchant to form the apertures simultaneously from both sides of the stencil.

这是一个反工艺，它应用成像技术来决定孔型。然后，同时从钢网的两边腐蚀成孔。