±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 1502  |  »Ø¸´: 6
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

Ц`Ц

Ìú³æ (³õÈëÎÄ̳)

[ÇóÖú] ¶¯Á¦Ñ§Ä£ÄâÖÐÓöµ½µÄÒ»¸öÎÊÌâÇó°ïÖú ÒÑÓÐ2È˲ÎÓë

Dynamics cannot integrate the equation of motion for particles with a zero (or small) mass.

ÇëÎÊ Ä£ÄâµÄʱºò³öÏÖÕâ¾ä»°ÊÇʲôÇé¿ö  Ôõô½â¾ö
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

ÓÐÅó×ÔÔ¶·½À´~~
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
ÒýÓûØÌû:
4¥: Originally posted by Ц`Ц at 2014-03-07 16:53:18
ÇëÎÊ Õâ¸öÎÊÌâÔõô½â¾ö°¡ Çó½Ì...

@tianlangxingaa
@sciencejoy
5Â¥2014-03-08 10:02:00
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 7 ¸ö»Ø´ð

sciencejoy

гæ (ÖøÃûдÊÖ)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
ÔÂÖ»À¶: ½ð±Ò+1, ¹ÄÀø½»Á÷£¡ 2014-03-08 10:01:00
Òâ˼ºÜÃ÷ÏÔ£¬ÓÐÁ£×ÓÖÊÁ¿±»ÉèΪ0£¬»òÉèµÄ̫С¡£
2Â¥2014-03-06 19:21:45
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

tianlangxingaa

Ìú¸Ëľ³æ (ÖøÃûдÊÖ)

¡ï
ÔÂÖ»À¶: ½ð±Ò+1, ¹ÄÀø½»Á÷£¡Â¥Ö÷¸üÏëÖªµÀµÄÊǽâ¾ö·½°¸°É¡£ 2014-03-09 10:11:56
ÄѵÀÁ¬Ó¢Óï¶¼¿´²»¶®£¿
3Â¥2014-03-07 05:11:23
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

Ц`Ц

Ìú³æ (³õÈëÎÄ̳)

ÒýÓûØÌû:
2Â¥: Originally posted by sciencejoy at 2014-03-06 19:21:45
Òâ˼ºÜÃ÷ÏÔ£¬ÓÐÁ£×ÓÖÊÁ¿±»ÉèΪ0£¬»òÉèµÄ̫С¡£

ÇëÎÊ Õâ¸öÎÊÌâÔõô½â¾ö°¡ Çó½Ì
ÓÐÅó×ÔÔ¶·½À´~~
4Â¥2014-03-07 16:53:18
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 282Çóµ÷¼Á +4 wcq131415 2026-03-24 4/200 2026-03-30 10:39 by Delta2012
[¿¼ÑÐ] 337Çóµ÷¼Á +6 ¡¶Ê÷¡· 2026-03-29 6/300 2026-03-30 10:15 by herarysara
[¿¼ÑÐ] Ò»Ö¾Ô¸211£¬335·Ö£¬0856£¬Çóµ÷¼ÁԺУºÍµ¼Ê¦ +7 Çã____Ïô 2026-03-27 8/400 2026-03-30 09:37 by longlotian
[¿¼ÑÐ] ¸÷λÀÏʦºÃ£¬ÎÒµÄһ־ԸΪ±±¾©¿Æ¼¼´óѧ085601²ÄÁÏר˶ +9 Koxui 2026-03-28 9/450 2026-03-29 20:43 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] 08¹¤¿ÆÇóµ÷¼Á286 +3 tgs_001 2026-03-28 3/150 2026-03-29 18:29 by 1018329917
[¿¼ÑÐ] 085600 ²ÄÁÏÓ뻯¹¤ 329·ÖÇóµ÷¼Á +14 Mr. Z 2026-03-25 14/700 2026-03-29 17:27 by ѧԱ8dgXkO
[¿¼ÑÐ] 22408 359·Öµ÷¼Á +4 Qshers 2026-03-27 6/300 2026-03-29 14:16 by Qshers
[¿¼ÑÐ] 085600£¬×¨Òµ¿Î»¯¹¤Ô­Àí£¬321·ÖÇóµ÷¼Á +5 ´ó²öС×Ó 2026-03-28 5/250 2026-03-29 08:56 by qingfeng258
[¿¼ÑÐ] 305Çóµ÷¼Á +8 RuiFairyrui 2026-03-28 8/400 2026-03-29 08:22 by fmesaito
[¿¼ÑÐ] 330·ÖÇóµ÷¼Á +5 qzenlc 2026-03-29 5/250 2026-03-29 07:37 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] 0703»¯Ñ§µ÷¼Á£¬Çóµ¼Ê¦ÊÕ +9 ÌìÌìºÃÔËÀ´Éϰ¶° 2026-03-24 10/500 2026-03-28 22:17 by chemzp
[¿¼ÑÐ] һ־Ը̫ԭÀí¹¤°²È«¹¤³Ì300·Ö£¬Çóµ÷¼Á +5 0857Çóµ÷¼Á. 2026-03-24 6/300 2026-03-28 22:04 by zhq0425
[¿¼ÑÐ] 331»·¾³¿ÆÑ§Ó빤³ÌÇóµ÷¼Á +3 ìÚÈ»ºÃÔËÆø 2026-03-27 3/150 2026-03-28 04:11 by fmesaito
[¿¼ÑÐ] 315·ÖÇóµ÷¼Á +7 26¿¼ÑÐÉϰ¶°æ26 2026-03-26 7/350 2026-03-28 04:05 by fmesaito
[¿¼ÑÐ] »¯Ñ§µ÷¼Á +4 °®³Ô·¬ÇѵÄÐñ 2026-03-24 5/250 2026-03-27 17:50 by kiokin
[¿¼ÑÐ] 081200-11408-276ѧ˶Çóµ÷¼Á +3 ´Þwj 2026-03-26 3/150 2026-03-26 19:57 by nihaoar
[¿¼ÑÐ] ²ÄÁÏÓ뻯¹¤304ÇóBÇøµ÷¼Á +3 Çñgl 2026-03-25 3/150 2026-03-25 19:03 by Ainin_
[¿¼ÑÐ] 285Çóµ÷¼Á +3 AZMK 2026-03-24 3/150 2026-03-25 12:23 by userper
[¿¼ÑÐ] 080500Çóµ÷¼Á +3 zzzzfan 2026-03-24 3/150 2026-03-24 16:38 by barlinike
[¿¼ÑÐ] 277·ÖÇóµ÷¼Á£¬¿çµ÷²ÄÁÏ +3 ¿¼Ñе÷¼Álxh 2026-03-24 3/150 2026-03-24 13:52 by JourneyLucky
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û