求翻译：定单是客户向经纪发出的交易指示。定单能够以特定价格或市场价格投放。同时定单还可设为成交前或收盘前有效。是什么意思？

The orders are orders issued by the customer to the broker. Order to put a specific price or market price. Orders can also be set to turnover or before the close.

Purchase orders are issued by the Customer to brokerage trading instructions. In order to be able to put specific price or market prices. While Orders also may be provided for before trading before closing or effective.

The order form is the customer the transaction instruction which sends out to the broker.The order form can by the specific price or the market price delivery.Simultaneously the order form also may suppose for before the deal before or closing effective.

Orders are orders issued by the customer to the broker. Orders can be directed at a specific price or market launch. While orders can also be set to a valid contract or before closing.