·µ»Ø
ÎÒΪÌìµØÒ»ÏÉÈË
Ê×Ò³
¹ØµÆ
»¤ÑÛ
×ÖÌ壺
´ó
ÖÐ
С
еÄÒ»¸öÔÂÎÒ»áºÃºÃ×öÈ˵Ä(1/2)
´æÊéÇ©
Êé¼Ü¹ÜÀí
·µ»ØÄ¿Â¼
еÄÒ»¸öÔÂÎÒ»áºÃºÃ×öÈ˵Ä
еÄÒ»¸öÔÂÎÒ»áºÃºÃ×öÈ˵Ä(1/2),µã»÷ÏÂÒ»Ò³¼ÌÐøÔĶÁ
ÉÏÒ»ÕÂ
Ŀ¼
ÏÂÒ»Ò³