周五有消息确认二季度的经济状况比预期要弱很多，仅增长1.6个百分点，初始读数则为2.4个百分点。
News on Friday confirmed that the economy was far weaker in the second quarter than originally believed, growing at 1.6 percent versus an initial reading of 2.4 percent.
依然是20厘米，这些读数不再，比0。5厘米更精确。
It's as close as I can see it to 20, but all these readings are no more accurate than half a centimeter or so.
实验结果表明该方法比传统方法速度快、精度高，系统读数平均误差仅为0.016%。
The experimental result demonstrates that the methods are much faster and more accurate than the traditional methods, and the mean error of reading value is only 0.016%.
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