对宽度尺寸快速检测量具的评估，用测量系统波动性原理，计算量测系统重复性和再现性，分析量具的精度。
By using measurement system analysis principle, calculating the value of gage repeatability and reproducibility, in order to evaluate feasibility of housing width quickly gage.
还有些人担心高频交易增加了波动性和系统风险。
Others worry that HFT increases volatility and systemic risk.
这套系统测试1996-2007年期间，在相似的波动性之下，所产出的回报每年平均超过标准普尔指数1个多百分点。
Testing this system over the period 1996-2007 produces returns that beatthe S&P500 index by more than a percentage point a year with similarvolatility.
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