ÊÔ¾í²Î¿¼´ð°¸
Ò»¡¢ÅжÏÌ⣨¹²10Ì⣬ÿÌâ2·Ö£¬¹²20·Ö£¬ÕýÈ·´ò¡°¡Ì¡±£¬´íÎó´ò¡°¡Á¡±¡££©
1¡¢¡Ì 2¡¢¡Ì 3¡¢¡Á 4¡¢¡Á 5¡¢¡Ì 6¡¢¡Ì 7¡¢¡Ì 8¡¢¡Ì 9¡¢¡Ì 10¡¢¡Á
¶þ¡¢Ñ¡ÔñÌ⣨µ¥ÏîÑ¡ÔñÌ⣬¹²15Ì⣬ÿÌâ2·Ö£¬¹²30·Ö¡££©
1¡¢C 2¡¢A 3¡¢A 4¡¢C 5¡¢B 6¡¢B 7¡¢B 8¡¢C 9¡¢C 10¡¢C 11¡¢B 12¡¢B 13¡¢C 14¡¢B 15¡¢C Èý¡¢Ìî¿ÕÌ⣨¹²20¿Õ£¬Ã¿¿Õ1·Ö£¬¹²20·Ö¡££© 1¡¢ »úе´«¶¯¡¢ÒºÑ¹´«¶¯¡¢Æø¶¯´«¶¯ 2¡¢ ¸ß¸±¡¢µÍ¸± 3¡¢ Áª½ÓÂÝÎÆ¡¢´«¶¯ÂÝÎÆ 4¡¢ 8mm¡¢576mm 5¡¢ ÄÚȦ¡¢ÍâȦ¡¢¹ö¶¯Ìå 6¡¢ ¸ÕÐÔ¡¢ÄÓÐÔ¡¢°²È« 7¡¢ ÃÜ·âÈÝ»ý¡¢ÎüÓÍ¡¢Ñ¹ÓÍ 8¡¢ ·ÂÐÍ·¨¡¢Õ¹³É·¨
ËÄ¡¢×ÛºÏÌ⣨ÿ¿Õ1·Ö£¬¹²12·Ö£© 1¡¢ ƽ¡¢ËÉ¡¢Í⡢С´øÂÖ 2¡¢ V¡¢ËÉ¡¢ÄÚ¡¢´ó´øÂÖ 3¡¢ ´ó¡¢Ð¡ 4¡¢ A¡¢B
Îå¡¢¼ÆËãÌ⣨¹²18·Ö£©
1¡¢ (1)I=3 (2)¦Á=160¡ã>150¡ã£¬ËùÒÔ°ü½ÇÊǺϸñµÄ¡£ (3)L=3689.3mm 2¡¢ m1=da1/(z1+2)=2.5 m2= da2(z2+2)=3
ÓÉÓÚm1¡Ùm2£¬ËùÒÔÕâÁ½¸ö³ÝÂÖ²»ÄÜÅä¶ÔʹÓá£
µÚ 6 Ò³ ¹² 6 Ò³