求翻译：1、就我司与PRC公司的年度采购量，我们希望按照提货量增长逐级兑现价格优惠，同时可接受至少90天的远期信用证；：是什么意思？

1, Division I and the PRC on the company's annual purchasing volume, we hope to progressively increase the amount of cash in accordance with delivery price, while acceptable at least 90 days long-term credit;:

1, as far as I am Division PRC company with the annual purchase volume growth, we hope that, in accordance with delivery volume honoring one level at preferential prices, and at the same time acceptable credit; at least 90 days:

1st, takes charge of and the PRC Corporation's year quantity purchased on me, we hoped according to takes delivery of goods the quantity to grow the progressive cash price preferential benefit, simultaneously may accept at least 90 day-long forward letters of credit;:

1, with the PRC on our annual volume of the company, we want to take delivery of growth gradually cash price concessions, while acceptable at least 90 days usance credit;:

1, with the PRC on our annual volume of the company, we want to take delivery of growth gradually cash price concessions, while acceptable at least 90 days usance credit;: