Assertion: lubricant's substance | /r/HasProperty | surfactant
Facets:
Source sentences:
text: Substances used as lubricants include oils derived for the most part from petroleum and synthetic oils, greases, solids (graphite, molybdenum disulfide, polymers with fillers), gases (air, vapors of hydrocarbons, halogen derivatives of methane), and surfactants (soaps, glycerol).
text: Substances used as lubricants include oils derived for the most part from petroleum and synthetic oils, greases, solids (graphite, molybdenum disulfide, polymers with fillers), gases (air, vapors of hydrocarbons, halogen derivatives of methane), and surfactants (soaps, glycerol).