未交货订单的中文解释

厂商尚未交货的商品或服务订单，可以订单金额表示，亦可以完成这些订单所需的正常生产天数来表达。未交货订单的水平是经济景气与否的一个重要指标。未交货订单下滑可能显示新订单减少，旧订单正逐步完成，厂商或许不太愿意持有太多的库存。

Backlog的英文解释

Orders for goods or services that have not yet been fulfilled. They can be measured in cash terms, or by the number of days of normal production it would take to clear them. The level of backlogs is an important indicator of whether an economy is growing or not. Falling backlogs may be a sign that new orders are dropping and the old ones are being fulfilled, and that producers are less willing to hold large stocks or inventories.

• normal [´nɔ:məl]   a.正规的 n.正常状态   (初中英语单词)
• economy [i´kɔnəmi]   n.经济；机制；组织   (初中英语单词)
• willing [´wiliŋ]   a.情愿的，乐意的   (初中英语单词)