定约方 meaning in Chinese

contracting side

In the interbank market , every counterparty was potentially vulnerable
银行同业的市场里，每个定约方其实都不堪一击。
Overtrick ? each trick won by declarer ' s side in excess of the contract
超墩? ?定约方庄家所赢得的超过定约数的每一墩。
The contractor shall specify the octapharma order number and product number on every invoice
定约方须在每张发票上注明octapharma订单标编号和产品编号。
Only fear will spur investors to price risks better and get them to put more effort into monitoring their counterparties
只有恐慌才会让投资者更充分地认识风险，更用心监督定约方。