校验,检验
checkout n 1: the act of inspecting or verifying; "they made a check of their equipment"; "the pilot ran through the check-out procedure" [syn: {check}, {check-out procedure}] 2: the latest time for vacating a hotel room; "the checkout here is 12 noon" [syn: {checkout time}] 3: a counter in a supermarket where you pay for your purchases [syn: {checkout counter}]