On the other hand, if the operator is willing to provide a different charging scheme based on the actual service type, it may be more beneficial to the users.

另一方面，如果运营商愿意根据实际移动类型提供不同的收费方案，则对用户的好处将更大。

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Since the bubble burst, Softbank has reinvented itself at least twice, first as a fixed-line telecoms and broadband firm, and now that scheme has lost its shine, as a mobile-phone operator.

在互联网泡沫破灭之后，软银经历了两次转型，第一次是转型为一家固定电话和宽带服务商，而现在这一行业风光不再，软银又转型成了一家移动电话运营商。

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This method is an analytic scheme of fractional steps for convection operator and for diffusion operator respectively.

其主要特点是：采用分步方法，对对流算子与扩散算子分别解析求解。

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Since the financial crisis, several business schools have introduced ethics courses addressing the moral shortcomings of convicted Ponzi scheme operator Bernard Madoff or added lessons on the social implications of the mortgage meltdown.

WSJ: Catholic University of America Mixes Business With Religious Values

There could be a scheme whereby the lottery operator simply gets a management fee (otherwise known as a fixed profit).

ECONOMIST: Clottery

Some travel agents will not be ready for a new scheme that clarifies holidaymakers' rights if a tour operator collapses, organisers say.

BBC: Concerns over new holiday rights' certificate