释义（英文）
名词 Noun
- (law enforcement, countable) Initialism of preliminary breath test.
- (organic chemistry) Initialism of polybutylene terephthalate.
- (toxicology, countable) Initialism of persistent, bioaccumulative and toxic (substance).
- (software engineering, uncountable) Initialism of property-based testing.
专有名词 Proper noun
- (networking) Initialism of Provider Backbone Transport.