特别惯例

【法】 special custom

特别的英语翻译：

especially; in particular; particularly; specialties
【法】 ad hoc

惯例的英语翻译：

convention; routine; consuetude; practice; rite; rule; tradition; usage
【化】 convention
【医】 nomo-; rut
【经】 consuetude; customary rule; customs and usages; established practices
practice; routine; usage