其实，与他之前的虚拟世界相比，SL的经济和流通管理相对严格。
In fact, compared with other virtual worlds before it, Second Life's economy and its currency have been tightly managed.
逻辑链路是一条信息可以双向流通的虚拟电路。
A logical link is a virtual circuit on which information flows in two directions.
经济虚拟化程度的加深使传统经济理论对“滞胀”与货币流通速度等现实经济问题的解释力普遍下降。
The deepening of the degree of economic virtualization reduced the explanatory power of traditional economic theory for such real economic issues as "stagflation" and the velocity of money.
比特币是最著名的虚拟货币，于2009年开始流通。
Bitcoin, the best-known virtual currency, started circulating in 2009.
比特币是最著名的虚拟货币，于2009年开始流通。
Bitcoin, the best-known virtual currency, started circulating in 2009.
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