Assertion: lubricant | /r/ObjectUse | used as neat oils
Facets:
value: in the 1930s
type: TEMPORAL
value: usually
type: TEMPORAL
Source sentences:
text: However, such lubricants were usually used as neat oils in the 1930s, that is, were not further diluted by dispersion or emulsification in an aqueous medium as is a common practice today.