西方人在中世纪世界的日常交易中从未一直使用实物货币。
The medieval worlds in its every-day transactions, had never insisted upon ready money.
在补偿交易中，进口设备的买家应该使用实物支付，而不是外汇。
In compensation trade, payment made by the buyer of imported equipment would be in goods, not in foreign exchange.
使用实物期权方法对装备生产进行分析，识别出装备生产所具有的转换期权特性并应用于实例。
This paper analyses equipment manufacture using real option approach. We can identify the option to switch from it and apply it to an example.
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