·µ»Ø
˳Ã÷
Ê×Ò³
¹ØµÆ
»¤ÑÛ
×ÖÌ壺
´ó
ÖÐ
С
ÎÒµÄÐÂÀË΢²©£¬Çë¹Ø×¢(1/2)
´æÊéÇ©
Êé¼Ü¹ÜÀí
·µ»ØÄ¿Â¼
×÷ÕßÐÂÀË΢²©£º
רдÃ÷³¯Ìرð°×£¬»¶Ó´ó¼Ò¹Ø×¢'
ÎÒµÄÐÂÀË΢²©£¬Çë¹Ø×¢(1/2),µã»÷ÏÂÒ»Ò³¼ÌÐøÔĶÁ
ÉÏÒ»ÕÂ
Ŀ¼
ÏÂÒ»Ò³