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丫頭789金蟲(chóng) (正式寫手)
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[求助]
如何用英文表達(dá) 病情指數(shù) 已有3人參與
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| 請(qǐng)問(wèn):病情指數(shù)(DI)=100×∑(各級(jí)病葉數(shù)×各級(jí)代表值)/(調(diào)查總?cè)~數(shù)×最高級(jí)代表值),這個(gè)公式用英語(yǔ)怎么表達(dá)? |
鐵桿木蟲(chóng) (正式寫手)
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試一下: DI, expressed as percentage, is the ratio between sum of number of unhealthy leaves at each grade times the grade's representative value, and product of the total number of leaves studied and the representative value of the highest grade 希望有所幫助 |

新蟲(chóng) (初入文壇)
金蟲(chóng) (正式寫手)
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