-
complex:surface,
-
absorbent:surface,
-
opaque:substance,
-
extra:equipment,
-
metallic:particle,
-
available:extra,
-
conductive:coating,
-
standard:equipment,
-
harder:material,
-
radiopaque:substance,
-
optional:extra,
-
conductive:paint,
-
impermeable:coating,
Category Nuances for null:
-
opaque,
-
complex,
-
standard,
-
absorbent,
-
harder,
-
conductive,
-
radiopaque,
-
metallic,
-
optional,
-
impermeable,
-
extra,
-
available,
Simple Categories for null: