First-class postage is more expensive but also more effective than third-class, Pingitore says.
一流的邮费是更昂贵,但也更有效得多比三流的邮费,Pingitore说。
This blend of instruction and story makes the book not only more readable and interesting, but also more effective, because it actually shows the reader how to apply Black's principles.
说明和故事的混合使本书不仅更加可读有趣,而且也更有效,因为它真正展示了读者如何应用Black的原则。
The results manifest that the model is not only reasonable and reliable but also more effective and precise in computing. It provides a new idea for optimal operation of cascade reservoirs.
通过实例计算分析,结果表明该模型合理、可靠,具有较高的计算效率与计算精度,为梯级水库优化调度提供了新的思路。
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