式

codes of laws and ethics (Tang Code)

Keplerian telescope

Physics

Maxwell's equations

official name of a country

Computing

constant expression

Computing

access method

quinella (bet); dual forecast; reverse forecast

place bet (in horse racing, etc.); show bet; bet that predicts a top 2 or top 3 finish (depending on number of horses, etc. in race)

Computing

text format

essay-type test; essay-based examination

concert version (of an opera or musical); concert staging

Mathematics

fractional expression

linear expression

formal

closed stack system (e.g. library)

residential; training-camp-style; boarding

private equity

Computing

arithmetic expression

flush toilet

opening ceremony

ABO blood type

inflatable (in the sense of "needs to be inflated for normal use")

single-entry bookkeeping

class that combines students of two or more grade levels; combined class