purchase order
purchase order 订(货)单；定购单 授权卖方在此后交付货物以获取价款的书面文件，即要求供货商或卖方发货的书面授权。它在法律上构成一项要约，而供货商或卖方按照订单规定的质量和数量要求交付货物的行为则构成承诺。
PURCHASE ORDER
purchase order
purchase order. A document authorizing a seller to deliver goods with payment to be made later. [Cases: Sales 23(1). C.J.S. Sales §§ 29–31.]