With comparative objects and comparative samples as its footholds, functional comparative law focuses on any law's functions and practical efficiency.

功能比较法以比较对象和比较样本为基本概念，关注法律的功能及其实际效果。

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The differences between efficiency of test and practical efficiency and the aspects needed to be considered when testing filter for bio-protection are discussed at the end.

对检测效率和实用效率之间的差别以及检测生物防护用过滤器所应注意的问题进行了讨论。

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And in practical terms, we can define the efficiency as the ratio of the heat in to the work out.

在实际中，我们定义,效率为热与功的比值。

麻省理工公开课 - 热力学与动力学课程节选

Fully exploiting wherever practical the best available efficiency techniques throughout the U.S. economy could save half our oil and gas use, and three-fourths of our electricity, at about an eighth of their current price.

FORBES: Magazine Article

The practical applications could improve the efficiency of quantum computers, where light is often used to transfer information.

ENGADGET: Researchers capture a single atom's shadow, has implications for quantum computers

Applied research solves practical problems, such as improving the energy efficiency of vehicles.

FORBES: Back to Basics at the National Science Foundation