ÈçͼËùʾ£¬Ð±À­ÇŵÄËþÖùÁ½²àÓÐÐí¶à¸ÖË÷£¬ËüÃǵÄÒ»¶Ë¶¼ÏµÔÚËþÖùÉÏ£®¶ÔÓÚÿһ¶Ô¸ÖË÷£¬ËüÃǵÄÉ϶˿ÉÒÔ¿´³ÉϵÔÚÒ»Æ𣬼´Á½¸ù¸ÖË÷¶ÔËþÖùµÄÀ­Á¦F1¡¢F2×÷ÓÃÔÚͬһµã£®ËüÃǺÏÆðÀ´¶ÔËþÖùµÄ×÷ÓÃЧ¹ûÓ¦¸ÃÈÃËþÖùºÃÏñÊܵ½Ò»¸öÊúÖ±ÏòϵÄÁ¦FÒ»ÑùÈçͼ£¨2£©Ëùʾ£®ÕâÑù£¬ËþÖù±ãÄÜÎȹ̵ØØùÁ¢ÔÚÇŶÕÉÏ£¬²»»áÒò¸ÖË÷µÄÇ£À­¶ø·¢ÉúÇãб£¬ÉõÖÁµ¹Ï£®Èç¹ûбÀ­ÇÅËþÖùÁ½²àµÄ¸ÖË÷²»ÄܳʶԳƷֲ¼Èçͼ£¨3£©Ëùʾ£¬Òª±£³ÖËþÖùËùÊܵĺÏÁ¦ÊúÖ±ÏòÏ£¬ÄÇô¸ÖË÷AC¡¢ABµÄÀ­Á¦FAC¡¢FABÓ¦Âú×㣨¡¡¡¡£©
·ÖÎö£º½«¸ÖË÷AC¡¢ABµÄÀ­Á¦FAC¡¢FAB½øÐкϳɣ¬ºÏÁ¦ÊúÖ±ÏòÏ£¬¸ù¾ÝƽÐÐËıßÐζ¨Ôò×÷ͼºó¸ù¾Ý¼¸ºÎ¹ØϵÁÐʽÇó½â£®
½â´ð£º½â£º½«¸ÖË÷AC¡¢ABµÄÀ­Á¦FAC¡¢FAB½øÐкϳɣ¬ºÏÁ¦ÊúÖ±ÏòÏ£¬¸ù¾ÝƽÐÐËıßÐζ¨Ôò×÷ͼ£¬ÈçͼËùʾ£º

½áºÏÕýÏÒ¶¨Àí¿ÉÖª£ºFAC£ºFAB=sin¦Â£ºsin¦Á£»
¹ÊÑ¡B£®
µãÆÀ£º±¾Ìâ¹Ø¼ü½«¸ÖË÷AC¡¢ABµÄÀ­Á¦FAC¡¢FAB½øÐкϳɣ¬È»ºó¸ù¾ÝÕýÏÒ¶¨ÀíÁÐʽ·ÖÎö£»µ«ÊÇÄ¿Ç°½­ËÕµÈÊ¡·ÝÃ÷È·¹æ¶¨Ö»¿¼ÂÇÖ±½ÇÈý½ÇÐεÄÇé¿ö£¬ÌâÄ¿½ÏΪÀäƧ£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º ÌâÐÍ£º

ÑîÆÖ´óÇÅÊǼÌÄÏÆÖ´óÇÅÖ®ºóÓÖÒ»×ù¿çÔ½»ÆÆÖ½­µÄÎÒ¹ú×ÔÐÐÉè¼Æ½¨ÔìµÄË«ËþË«Ë÷ÃæµüºÏÁºÐ±À­ÇÅ£¬ÈçͼËùʾ£®Í¦°Î¸ßËʵÄ208Ã×Ö÷ËþËÆÒ»°ÑÀû½£Ö±´Ìñ·²Ô£¬ËþµÄÁ½²à32¶Ô¸ÖË÷Á¬½ÓÖ÷Áº£¬³ÊÉÈÃæÕ¹¿ª£¬Èç¾ÞÐÍÇÙÏÒ£¬Õýµ¯×àמÞÁúÌڷɵÄ×àÃùÇú£®¼ÙÉèбÀ­ÇÅÖÐij¶Ô¸ÖË÷ÓëÊúÖ±·½ÏòµÄ¼Ð½Ç¶¼ÊÇ30¡ã£¬Ã¿¸ù¸ÖË÷ÖеÄÀ­Á¦¶¼ÊÇ3¡Á104N£¬ÄÇôËüÃǶÔËþÖùÐγɵĺÏÁ¦Óжà´ó£¿·½ÏòÈçºÎ£¿

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º²»Ïê ÌâÐÍ£ºÎÊ´ðÌâ

ÑîÆÖ´óÇÅÊǼÌÄÏÆÖ´óÇÅÖ®ºóÓÖÒ»×ù¿çÔ½»ÆÆÖ½­µÄÎÒ¹ú×ÔÐÐÉè¼Æ½¨ÔìµÄË«ËþË«Ë÷ÃæµüºÏÁºÐ±À­ÇÅ£¬ÈçͼËùʾ£®Í¦°Î¸ßËʵÄ208Ã×Ö÷ËþËÆÒ»°ÑÀû½£Ö±´Ìñ·²Ô£¬ËþµÄÁ½²à32¶Ô¸ÖË÷Á¬½ÓÖ÷Áº£¬³ÊÉÈÃæÕ¹¿ª£¬Èç¾ÞÐÍÇÙÏÒ£¬Õýµ¯×àמÞÁúÌڷɵÄ×àÃùÇú£®¼ÙÉèбÀ­ÇÅÖÐij¶Ô¸ÖË÷ÓëÊúÖ±·½ÏòµÄ¼Ð½Ç¶¼ÊÇ30¡ã£¬Ã¿¸ù¸ÖË÷ÖеÄÀ­Á¦¶¼ÊÇ3¡Á104N£¬ÄÇôËüÃǶÔËþÖùÐγɵĺÏÁ¦Óжà´ó£¿·½ÏòÈçºÎ£¿
¾«Ó¢¼Ò½ÌÍø

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£ºÍ¬²½Ìâ ÌâÐÍ£º¼ÆËãÌâ

ÑîÆÖ´óÇÅÊǼÌÄÏÆÖ´óÇÅÖ®ºóÓÖÒ»×ù¿çÔ½»ÆÆÖ½­µÄÎÒ¹ú×ÔÐÐÉè¼Æ½¨ÔìµÄË«ËþË«Ë÷ÃæµüºÏÁºÐ±À­ÇÅ£¬ÈçͼËùʾ¡£Í¦°Î¸ßËʵÄ208Ã×Ö÷ËþËÆÒ»°ÑÀû½£Ö±´Ìñ·²Ô£¬ËþµÄÁ½²à32¶Ô¸ÖË÷Á¬½ÓÖ÷Áº£¬³ÊÉÈÃæÕ¹¿ª£¬Èç¾ÞÐÍÇÙÏÒ£¬Õýµ¯×àמÞÁúÌڷɵÄ×àÃùÇú¡£¼ÙÉèбÀ­ÇÅÖÐij¶Ô¸ÖË÷ÓëÊúÖ±·½ÏòµÄ¼Ð½Ç¶¼ÊÇ30¡ã£¬Ã¿¸ù¸ÖË÷ÖеÄÀ­Á¦¶¼ÊÇ3¡Á104N£¬ÄÇôËüÃǶÔËþÖùÐγɵĺÏÁ¦Óжà´ó£¿·½ÏòÈçºÎ£¿

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖÐÎïÀí À´Ô´£º¡¶µÚ3Õ Ï໥×÷Óá·2010Äêµ¥Ôª²âÊÔ¾í£¨ÇàÖݶþÖУ©£¨½âÎö°æ£© ÌâÐÍ£º½â´ðÌâ

ÑîÆÖ´óÇÅÊǼÌÄÏÆÖ´óÇÅÖ®ºóÓÖÒ»×ù¿çÔ½»ÆÆÖ½­µÄÎÒ¹ú×ÔÐÐÉè¼Æ½¨ÔìµÄË«ËþË«Ë÷ÃæµüºÏÁºÐ±À­ÇÅ£¬ÈçͼËùʾ£®Í¦°Î¸ßËʵÄ208Ã×Ö÷ËþËÆÒ»°ÑÀû½£Ö±´Ìñ·²Ô£¬ËþµÄÁ½²à32¶Ô¸ÖË÷Á¬½ÓÖ÷Áº£¬³ÊÉÈÃæÕ¹¿ª£¬Èç¾ÞÐÍÇÙÏÒ£¬Õýµ¯×àמÞÁúÌڷɵÄ×àÃùÇú£®¼ÙÉèбÀ­ÇÅÖÐij¶Ô¸ÖË÷ÓëÊúÖ±·½ÏòµÄ¼Ð½Ç¶¼ÊÇ30°£¬Ã¿¸ù¸ÖË÷ÖеÄÀ­Á¦¶¼ÊÇ3×104N£¬ÄÇôËüÃǶÔËþÖùÐγɵĺÏÁ¦Óжà´ó£¿·½ÏòÈçºÎ£¿

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸