... panel dial exchange 升降制自动交换机 electronic dial exchange 电子式拨号交换机 dial telephone exchange 自动电话交换机 ...
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exchange dial telephone 拨号电话交换机
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Before the age of direct dial international telephone calls and emails, the best way of doing business was to meet on the floor of the Baltic Exchange and share written notices and talk.
在国际直接通话和电邮的时代来临之前，做生意的最佳方式是去波交所见面交流。
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