4ÔÂ12ÈÕ£¬ºÚÁú½­Ê¡´óÇìÊÐÁÖµéÏØóÒ×É̱¨ÕäÖéºìС¶¹³ö»õ²Î¿¼¼Û7.7-7.8Ôª/½ï£¬²¿·ÖÉ̼ұ¨¼Û7.9-8.0Ôª/½ï£¬Êг¡°´Öʶ¨¼Û£¬ÏÂÓθ߼ÛÂÔÓеִ¥£¬Á¸É̹ÛÍûÇéÐ÷Ũ¡£