英文名称：Backlog 中文名称：未交货订单／订单积压厂商尚未交货的商品或服务订单。可以用订单金额表示，也可以用完成这些订单所需要的正常生产天数表示。未交货订单的水平是经济景气与否的一个重要指标。eb1619e81e59668d2db8098284f6daa5e.g. Order backlog at the end of June was EUR16.19 billion, up from the record EUR15.41 billion on March 31 as the industry continued to require the services and equipment of companies such as Saipem with surging crude prices making more-expensive oil finds profitable.