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銆�銆�R = 蟻L/S锛埼╋級 锛�2鈥�1锛�
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銆�銆�螖R = 螖蟻L/S + 螖L蟻/S 鈥撐擲蟻L/S2 锛�2鈥�2锛�
銆�銆�鐢ㄥ紡锛�2--1锛夊幓闄ゅ紡锛�2--2锛夊緱鍒�
銆�銆�螖R/R = 螖蟻/蟻 + 螖L/L 鈥� 螖S/S 锛�2鈥�3锛�
銆�銆�鍙﹀锛屾垜鍊戠煡閬撳皫绶氱殑姗埅闈㈢⿳S = 蟺r2锛屽墖 螖s = 2蟺r*螖r锛�
銆�銆�鎵�浠� 螖S/S = 2螖r/r 锛�2鈥�4锛�
銆�銆�螖r/r = -渭螖L/L 锛�2鈥�5锛�
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銆�銆�=锛�1 + 2渭锛埼斚�/蟻锛�/锛埼擫/L锛夛級*螖L/L
銆�銆�= K *螖L/L 锛�2--6锛�
銆�銆�鍏朵腑
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銆�銆�螖R/R = K蔚 (2鈥�8)
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