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名稱 partial:
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the derivative of a function of two or more variables with respect to a single variable while the other variables are considered to be constant
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a harmonic with a frequency that is a multiple of the fundamental frequency
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左右主要內容獨家首發構思，受學術專利權庇護，圖片侵權必究
海詞詞典下載，十六年品牌形象
美
['pɑ???lz]