One, while we choose to implement a two-tier approach for production purposes, we did test Portal Enable on single-tier system and it worked flawlessly.

第一件，虽然出于生产目的，我们选择实现两层方法，但我们在单层系统上测试了Portal Enable，它运行良好。

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Eventually, once its two-tier share system was abolished, Gazprom became one of the world’s most valuable energy companies.

最终，一伺二元股票结构废除，Gazprom立刻就成了世界上最有价值的能源公司。

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The tiered system I envisage for electricity is not one where the baseline tier is already set to recoup full cost, with a tax artificially imposed on excess consumption, as is the case for water.

她认为如果我们用计算水费的分层式计算法来收取电费，国人将必须承担更高的电费。这是因为第一层用水收费就已经定在收回全部供水成本的水平。

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By 2015 registered IT and application partners--such as one-tier agents, two-tier agents, system integrators (SIs), dealers and direct market resellers--will account for 39% of end-user-generated revenue in this market.

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The Labour frontbencher warned the plan would "corrupt university admissions with a two tier system - one for the best qualified applicants, another for those with access to fatter cheque books".

BBC: Minister rules out 'university places for the rich'

The UAW has always resisted a two-tier wage system within one manufacturing site.

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