求翻译：货款支付将根据订单的难度、数量和交期等等具体的协商，以预付10~30%货款或180天帐期为主要付款方式，最长帐期将不超过180天；是什么意思？

The purchase price paid will be based on the consultation of the order of difficulty, quantity and delivery to prepay the 10 ~ 30% of the purchase price or 180 days-off period for the primary payment method, the longest off period will not exceed 180 days;

It is more difficult for the purchase price would be paid in accordance with orders, quantity and delivery date, and so on specific consultations in order to pre-paid 10 to 30 percent or 180 days for goods account for key manner of payment, the longest period will not exceed 180 days;

The loans payment will act according to the order form the difficulty, quantity and the delivery date and so on the concrete consultation, take will pay in advance 10~30% loans or 180 day account times as the main payment method, the longest account time will not surpass 180 day;

Payment will be based on the order of difficulty, the number of consultations and delivery, and more specifically, to 10~30% in advance loan accounts or 180-day period as the main method of payment, the account will not longer than 180 days;

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