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210jiejie

金虫 (正式写手)

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wshbinzhang

铁杆木虫 (知名作家)

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zap65535(金币+10): 2010-03-03 10:32
In this experiment, the sample weight is retained using two decimal, so the calculation of the product rate is also used two decimal.
3楼2010-03-01 09:33:39
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文子526

新虫 (著名写手)

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zap65535(金币+10): 2010-03-03 10:32
In this experiment, the weight of the weighing results for the sample should be retained two decimal places, so the yield of product can be calculated by use of uniformity two decimal fractions.
2楼2010-03-01 07:48:32
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mcphone

铜虫 (小有名气)

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zap65535(金币+5):热心 2010-03-03 10:32
The weights of sampls and yield of product calculated can be displayed with two decimal places  in this experiment.
注:“样品重量的称量结果保留两位小数”不能成为“在计算产物产率时统一使用两位小数”原因,两者没有直接因果关系。建议楼主读有效数字修约相关的内容。
根据情况,也可用以下表达
In this experiment,sampls should be weighed precise to two decimal places  and  the yield of product calculated can be rounded to two decimal places . 前者是称精确到,后者是修约,两个不同概念。
4楼2010-03-01 10:17:44
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