He also suggests that the table top could contain a sink and control panel with an electrical outlet and switches to operate the dishwasher and "an optional warming surface," so diners can make tea or coffee.
Third, since the optional bearing surface modifier administrative codes were not introduced until October, 2005, our study was limited to outcomes and complications that occurred within two years of the index procedure.
Polish the surface (optional).
Decorate the surface (optional).
This threshold level was consistent with the previous MER-ATP study where surfaces with <2.57 × 10−11 ATP mmoles per 25 cm2 were only recommended for optional cleaning, whereas surfaces surpassing >3.51 × 10−11 ATP mmoles per 25 cm2 were required to be cleaned again.
This study proposes alternate double-sided laser peening (ADLP) as an optional way for the surface treatment of thin section component to overcome the risk of internal spallation and facility cost in simultaneous double-sided laser peening (SDLP).
Our tester had optional ($800) leather seating surfaces.
Similarly the optional-yet-compulsory New Surface Pro Signature Type Cover is an extra $159.
Microsoft said that new versions of the Surface Pro's optional keyboard will be available with an Alcantara fabric material – the same finish that raised eyebrows when it was used to cover the keyboard deck of Microsoft's Surface Laptop.
