At EU level, this approach is embodied in the greenhouse gas emissions trading scheme (ETS), the 2003 directive on energy taxation and the recently revised Eurovignette directive on truck tolls.

在欧盟这一级别，这种做法体现在温室气体排放交易机制(“排放交易机制”)中，即2003年能源税指令以及最近刚刚修改的对超重卡车收费的Eurovignette指令。

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The design of a total energy conserving semi-implicit scheme for the multiple-level baroclinic primitive equation has remained an unsolved problem for a long time.

斜压原始方程半隐式全能量守恒格式的构造问题长期没有解决。

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