th root 中文意思是什麼
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It gives the necessary and sufficient condition of a matrix ' s n - th root, the operation method of how to find the nth root, and the count of a matrix ' s n - th roots
給出了可開方矩陣的充要條件,並對各種類型的可開方矩陣討論了根的形式,最後對可開方矩陣根的計數展開了討論,給出了結論。 -
There is a significant positive correlation between th e amount of zn uptaken and the root parameters under low zn level
在低鋅條件下,小白菜植株吸鋅量與根系參數呈顯著正相關。
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