All cases of drug leakage had no subcutaneous tissue necrosis for valid measurement in time.

发生药液渗漏的病人，及时采取有效护理措施，均未发生皮下组织坏死。

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Assume for now that the measurement process is valid.

现在，假设度量过程是有效的。

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Methods Valid chlorine content measurement method and statistical methods such as standard deviation, and square and root etc in "Technical standard For Disinfection" (2002 version) was adopted.

方法采用《消毒技术规范》(2002年版)有效氯含量测定方法以及标准偏差、方和根等统计学方法。

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"It's a false premise, " says retail expert Britt Beemer of America's Research Group on the notion of Wal-Mart's same-store sales as a valid economic measurement.

FORBES: Wizardry At Wal-Mart