With the aid of a spring scale (see above) the approximative coefficient of friction between a belt and a specific surface can easy be detected.

随着弹簧规模的援助(见上文)近似一条皮带和一个特定的表面之间的摩擦系数，可以很容易被发现。

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Experiment: Pull items of the same weight but different base area with a spring scale over an identic surface - the tractive force will be the same!

实验：同样的重量，但不同的根据地一个弹簧秤同文面拉项目-牵引力将是相同的！

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As you scale the spine of the Dragon's Back, you will walk along forested trails and un-forested peaks, perfect for viewing on a clear spring day.

当你攀登龙脊，你将会沿着森林的小径和没有森林的山峰行走，对于享受晴朗的春天是最理想的地方。

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When black-and-white stripes and even bold checks popped up again, on Michael Kors's spring runway, albeit at a subtler, more accessible scale, I was prepared to acknowledge that Op Art mostly in black-and-white, though occasionally in bright colors and pale neutrals was going to be one of the season's big statements.

WSJ: Can Mod Be Modern?