Mirepoix (cuisine)
Similar flavour bases include the Italian "soffritto", the Spanish "sofrito", "refogado/sufrito" (braised onions, garlic and tomato) from Portuguese-speaking nations, the German "suppengrün" (leeks, carrots and celeriac), the Polish "włoszczyzna" (leeks, carrots, celery root and parsley root), the US Cajun / Creole holy trinity (onions, celery and bell peppers), and possibly the French "duxelles" (mushrooms and often onion or shallot and herbs, reduced to a paste).
Two-in, two-out
Until 1999, the firefighting in France was performed according to the "Rules of instruction and maneuvers" ("Règlement d'instructions et de manoeuvres", RIM). The firefighters acted in teams of three members, called "trinomial" ("trinôme"): one chief, one deputy chief and one support; a fire engine with eight people thus had two trinom, an engine chief ("chef d'agrès") and a driver. In the 1990s, the Paris Fire Brigade started to work with teams of two people, called "binomial teams" ("équipes en binôme") or shortly "binomials" ("binômes"). This organisation was generalised to the whole France in a departmental order signed by the minister of Internal Affairs the 3 February 1999. An engine with eight people now has three binomials, an engine chief and a driver; an engine with six people has two binomials, an engine chief and a driver.