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["柴油十六烷值计算公式",,

2017-01-13View Original

Thread Content

["
Reply #22017-01-13
"Шестнановый индекс CI=431.99-11886.88ρ731.97^61.39 ρ6^30.055 ρ6^4-1.554B^77803 (lgB)^2 B — средняя тем馏出温度,ρ6为22度密度 求最后的a77803 (lgB)^2 lgB是什么意思"
Reply #32017-01-13
"Логарифм……"
Reply #42017-01-16
"Логарифм??即是如何转换的,小弟真不懂换算 �能不能举个例子 �谢谢"
Reply #52017-01-17
"lg是log以1为底的对数,lg a=log以 a为底的log a"

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