National Metric Study Conference 国家米制研究会
Dholakia's study found that 22% of respondents allowed their Groupon coupons to expire without being used, though he warns that vendors' data was somewhat spotty on that metric.
Dholakia的研究发现,有22%的被调查对象并没有使用Groupon优惠券,而是让它们过期作废,然而他提醒人们在这项指标上业主提供的数据有点水份。
Worldwide, data centers left a massive carbon footprint in 2009: 121 billion metric tons, according to a Rice University study, or about 1.6 percent of worldwide carbon emissions.
根据 Rice University 的研究报告,全世界的数据中心在 2009 年产生了巨大的碳足迹:12.1 亿吨,这大约占全世界碳排放总量的 1.6%。
First, the way combined with method and experiment were used to study the metric pump.
首先,采用理论与实验相结合的方法对计量泵进行了进一步的研究。
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