In this paper the working principles, construction, commonly seen troubles and remedy of automotive air conditioners are briefly described.

着重介绍了汽车用空调器的工作原理、结构、常见故障及其检修方法。

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This paper explains the working principles of a fan, including velocities on an elementary stage, parameters of blade types and cascades and the aerodynamics formulas of cascades.

本文首先介绍了风扇的工作原理，包括基元级的速度三角形、叶型和叶栅参数以及叶栅的空气动力学方程。

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The paper describes the basic structure and working principles of vertical spiral agitating mill, and highlights its application in the regrinding and re-separation process of iron concentrate.

介绍了立式螺旋搅拌磨矿机的基本结构和工作原理，着重叙述了该设备在铁精矿再磨再选工艺流程中的应用。

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More importantly, the alliance is working on principles governing who qualifies for loan alteration.

ECONOMIST: Mortgage restructuring

Although at first glance this flamboyant vase presents a seeming welter of surface ornament, on closer examination we see how Lycett, working within the principles of visual harmony and balance central to Aestheticism, deftly controls this abundance, deploying his ornamental motifs in a dramatic series of bands that alternate complementary textures and hues within a narrow but vivid color palette.

WSJ: Masterpiece: Gilded Abundance, Elegantly Restrained

This will demonstrate to middle income voters that true, free-market principles can, indeed, work for the working class, and that they are willing to fight for these principles regardless of class concerns.

FORBES: Note for "Super Wednesday" - Either Party Can Occupy the Student Loan Issue