契约效力

【法】 validity of contract

契约的英语翻译：

bargaining; bond; contract; covenant; deed; indent; indenture; obligation
pact; stipulation
【经】 agreement; agreements; bargain; compact; contract; deed; indenture
instrument; title deed

效力的英语翻译：

render a service to; efficacy; force; potence; potency; vigour; virtue
【医】 efficiency; potency
【经】 effect