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custom of the trade stresses
gen.	сложившаяся практика (A practice that has been used in a particular trade for a long time and is understood to apply by all engaged in that trade. Such customs or practices may influence the way in which a term in a contract is interpreted and courts will generally take into account established customs of a trade in settling a dispute over the interpretation of a contract. OB&M Alexander Demidov)
busin.	торговое обыкновение
law	обычай данной отрасли торговли; торговый обычай