Gives the comparative analysis of index expansion rate, creation time and search response speed by experiment, the result shows that this technique improves the index space and time efficiency.

通过实验，对索引膨胀率、创建时间和检索响应速度进行了对比分析，表明该技术提高了索引的空间与时间效率。

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Even in China, according to an index prepared by Markit and HSBC, manufacturing output fell a little in June, ending a 14-month run of expansion.

根据Markit与汇丰银行的统计指数显示，中国生产也结束了连续14个月的增长，在6月出现了略微的下跌。

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The Purchasing Manager's Index jumped above 50 for the first time in several months. A reading above 50 signals economic expansion.

采购经理人指数数月来第一次超过了50，一旦高于50则意味着经济扩张。

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The Federal Reserve Bank of Philadelphia's March business-activity index showed expansion, while economists had expected contraction.

WSJ: Stocks Hold Losses

The level of 50 in the purchasing managers' index separates contraction from expansion.

FORBES: Magazine Article

The Manufacturers Alliance for Productivity and Innovation (MAPI), said its December index points to continued expansion, though at a more moderate pace.

FORBES: Manufacturing's heavy lifting within the U.S. economy