例句與造句

1. Nanocolliods are used as an etch mask by spreading them along the material surface, and then ion beam bombardment or film evaporation is used to etch away around the nanocolliods, creating nanocolumns and nanopits, respectively.
2. Gallium ion implantion can be used as etch mask in cryo-DRIE . Combined nanofabrication process of focused ion beam and cryo-DRIE was first reported by N Chekurov " et al " in their article " The fabrication of silicon nanostructures by local gallium implantation and cryogenic deep reactive ion etching " ( Nanotechnology, 2009 ).
3. It's difficult to find etch mask in a sentence. 用etch mask造句挺難的