涡轮流量计说明书:buyer may terminate this contract and return all Products related to the Infringement to

buyer may terminate this contract and return all Products related to the Infringement to the buyer may,at its sole discretion buyer may impose a penalty payment buyer may decide upon the quantity of negotiation samples buyer may return defective products found after the delivery buyer may cancel the shipment of products,at no cost to the buyer seller agrees that buyer may return all of the products in a container the buyer may,at its sole discretion,request the seller to application.terminate 是什么意思? 什么是超级buyer秀？？