XSLT is a wonderfully efficient language for transforming documents, but it's not always the best language for more traditional tasks like integrating differential equations or talking to databases.

在转换文档时，XSLT是一种极其高效的语言，但对于更为传统的任务，比如说在求微分方程的积分或与数据库通信时。

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Some say that once the costs of power generation are factored into the equations, electric cars are only half as efficient with regard to energy use as modern diesel vehicles.

有人认为，一旦将发电成本综合考虑在内，在能源使用方面，电动汽车的效率只能达到目前现代柴油车的一半。

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It is of practical interest to give an efficient numerical method for solving the equations.

对这类方程给出一种有效的数值求解方法具有一定的实际意义。

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What this all means in practical terms is that Newcomb and Lu have managed to limit the time required to render thousands of 3D surfaces to only a fraction of those 16.666 milliseconds, giving them the room to fill in the balance with believable physics (and who knows what else, eventually.) And physics equations themselves are incredibly efficient descriptions of movement.

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