Whole Foods' operating margins are three times that of average grocery chains, with up to three times the sales per square foot.

全食超市的营业利润是一般食品连锁零售店的三倍，每平方英尺销售场地销售额也能达到一般水平的三倍。

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The obtained characteristic ratio of mean-square radius of gyration and its temperature coefficients for the long Poly(dimethylsilylene)chains with side groups approach the asymptotic value of 2.

得到其长链分子的均方回转半径的特征比和温度系数分别趋向于稳定值2。

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Expect a fierce battle for this middle space as drugstore chains and Wal-Mart square off.

FORBES: Magazine Article