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碳钢土壤腐蚀是复杂的随机现象。
The corrosion of carbon steel in soils is a complex and random phenomenon.
youdao
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概率统计的研究对象是随机现象。
The research object for probability statistics is a random phenomenon.
youdao
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概率统计的研究对象是随机现象。
The research object for probability statistics is a random phenomenon.
youdao