a commercial document used to request someone to supply something in return for payment and providing specifications and quantities
双语例句
To fill the increase in orders, the factory had to operate at a stepped-up rate. 为应付订购单的增加，工厂只得加速生产。
The sale and purchase of the Products shall be based on the terms and conditions set out in the applicable Purchase Order. 本产品的销售与购买应依据可适用的订购单之条款和条件来作出安排。
