请帮翻译：DATE OF PURCHASE/DATE DACHAT
翻译：
date of purchase：购买日期；采购日期
例句：
1.But some table fields ( e.g., Table3: Vehicle Date of Purchase) are not in our corresponding class because fields like this are not relevant to the Reserve a Vehicle use case.
但有些表的字段（如表3：车辆：Date of Purchase（购买日期））不在相应的类中，因为这类字段与预约车辆用例无关。
2.This warranty is good for one year after the date of the purchase of the product.
本保证书自购置此产品之日起有效期为一年。
3.To date, only friends of Ashbaugh have seen the traps. Among those who have bought them are several Nobel Prize winners in biology, a Maryland folklorist, the writer Paul Theroux ( who paid with a first edition of his novel The Mosquito Coast), and a nine-year-old who funded the purchase with her allowance.
目前在，只有他的朋友亲眼见过这些陷阱，这其中，几位诺贝尔生物学奖的获奖者，马里兰州的一位民俗学家，作家保罗梭罗和一个九岁的孩子买下了其中的一些陷阱，保罗是用他《蚊子海岸》第一版的版税来支付的，而那个孩子则是用零用钱买的。
您好，这里的意思是：
这个购买的日期。
