±±¾©Ê¯ÓÍ»¯¹¤Ñ§Ôº2026ÄêÑо¿ÉúÕÐÉú½ÓÊÕµ÷¼Á¹«¸æ
²é¿´: 1829  |  »Ø¸´: 12
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

liuying_2022

½ð³æ (СÓÐÃûÆø)

[½»Á÷] ¡¾ÇóÖú¡¿×ögpcÓõ½µÄÆ¿×ÓÓ¦¸ÃÈçºÎÇåÏ´ ÒÑÓÐ5È˲ÎÓë

ÇëÎʸ÷λ¸ßÊÖ£¬×öGPCʱÓõ½µÄ×°ÈܼÁµÄ²£Á§Æ¿Ôõô²ÅÄÜÇåÏ´¸É¾»ÄØ£¿ÊDz»ÊÇÒªÓõ½ÁòËáÄØ£¿
»Ø¸´´ËÂ¥
ÄÍÐÄ£¬ÒãÁ¦£¡
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

liuying_2022

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
Originally posted by RainÈó at 2010-11-01 14:46:17:
±È½Ï·±ËöÁË£¬ÎÒÃÇÒ»°ãÊÇÏÈÓÃH2SO4-K2Cr2O7Òº¼ÓÈÈÑõ»¯£¬È»ºóÓÃ×ÔÀ´Ë®³å10´Î£¬È»ºóÕôÁóË®³å3´Î£¬ÔÙÓöþ´ÎÖØÕôÁóˮϴһ´Î£¬Õæ¿Õ¸ÉÔïÏäºæ¸É¡£

Õâ¸öÁòËá-ÖØ¸õËá¼ØÒºÒªÔõôÅäÄØ£¿Òª¼ÓÈȵ½¶àÉÙ¶ÈÄØ£¿Ð»Ð»À²!
ÄÍÐÄ£¬ÒãÁ¦£¡
4Â¥2010-11-01 14:49:03
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 13 ¸ö»Ø´ð

chocolate3519

ľ³æ (ÕýʽдÊÖ)

¡ï ¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
¶«²ýÝ·(½ð±Ò+1):»¶Ó­½»Á÷ 2010-11-01 15:20:16
ÄãÊÇ˵²âÊÔÓõÄСƿÂð£¿
¿ÉÒÔÓòâÊÔʱÓõ½µÄÈܼÁ£¨ÈýÂȼ×Í飬ËÄÇâ߻ૣ©½þÅÝ£¬×îºÃ±ðÓÃÁòËá¡£
2Â¥2010-11-01 14:45:47
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

RainÈó

½ð³æ (ÕýʽдÊÖ)


¡ï ¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
¶«²ýÝ·(½ð±Ò+1):»¶Ó­½»Á÷ 2010-11-01 15:20:26
±È½Ï·±ËöÁË£¬ÎÒÃÇÒ»°ãÊÇÏÈÓÃH2SO4-K2Cr2O7Òº¼ÓÈÈÑõ»¯£¬È»ºóÓÃ×ÔÀ´Ë®³å10´Î£¬È»ºóÕôÁóË®³å3´Î£¬ÔÙÓöþ´ÎÖØÕôÁóˮϴһ´Î£¬Õæ¿Õ¸ÉÔïÏäºæ¸É¡£
3Â¥2010-11-01 14:46:17
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

RainÈó

½ð³æ (ÕýʽдÊÖ)


¡ï
¶«²ýÝ·(½ð±Ò+1):»¶Ó­½»Á÷ 2010-11-01 15:20:34
20gµÄK2Cr2O7£¬ÈÜÓÚ40mLË®ÖÐ,½«Å¨H2SO4 360mLÐìÐì¼ÓÈëK2Cr2O7ÈÜÒºÖÐ(ǧÍò²»Äܽ«Ë®»òÈÜÒº¼ÓÈëH2SO4ÖÐ),±ßµ¹±ßÓò£Á§°ô½Á°è,²¢×¢Òâ²»Òª½¦³ö,»ìºÏ¾ùÔÈ,ÀäÈ´ºó,×°ÈëϴҺƿ±¸ÓÃÐÂÅäÖÆµÄϴҺΪºìºÖÉ«,Ñõ»¯ÄÜÁ¦ºÜÇ¿£¬µ±Ï´ÒºÓþúó±äΪºÚÂÌÉ«£¨¿É¼ÓÈë¹ÌÌå¸ßÃÌËá¼ØÊ¹ÆäÔÙÉú£©,¼´ËµÃ÷Ï´ÒºÎÞÑõ»¯Ï´µÓÁ¦.
5Â¥2010-11-01 14:52:22
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] Ò»Ö¾Ô¸±±¾©»¯¹¤´óѧ²ÄÁÏÓ뻯¹¤£¨085600£©296Çóµ÷¼Á +25 µ¾ÆÞС±à 2026-03-26 25/1250 2026-03-30 20:11 by µÎµÎÉϰ¶Ñ½
[¿¼ÑÐ] Ò»Ö¾Ô¸ÄÏ¿ª´óѧ0710ÉúÎïѧ359Çóµ÷¼Á +5 ÍÃÍÃÍÃ111223314 2026-03-29 7/350 2026-03-30 18:29 by ÍÃÍÃÍÃ111223314
[¿¼ÑÐ] 291Çóµ÷¼Á +8 HanBeiNingZC 2026-03-24 8/400 2026-03-30 17:01 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] ÉúÎï¼¼ÊõÓ빤³Ì +7 1294608413 2026-03-25 8/400 2026-03-30 11:36 by ÌÆãå¶ù
[¿¼ÑÐ] Ò»Ö¾Ô¸ÖÐÄÏ´óѧ»¯Ñ§0703×Ü·Ö337Çóµ÷¼Á +6 niko- 2026-03-27 6/300 2026-03-30 10:25 by herarysara
[¿¼ÑÐ] 085600£¬²ÄÁÏÓ뻯¹¤321·ÖÇóµ÷¼Á +10 ´ó²öС×Ó 2026-03-28 10/500 2026-03-29 23:35 by ·ÉÐÐÈÕ¼ÇÎ÷
[¿¼ÑÐ] 070305¸ß·Ö×Ó»¯Ñ§ÓëÎïÀí 304·ÖÇóµ÷¼Á +12 c297914 2026-03-28 12/600 2026-03-29 16:21 by Serene1974
[¿¼ÑÐ] Ò»Ö¾Ô¸±±»¯085600²ÄÁÏר˶275|ÓÐÎÄÕÂרÀû£üÇóµ÷¼Á +7 Micky11223 2026-03-25 7/350 2026-03-28 18:34 by Î޼ʵIJÝÔ­
[¿¼ÑÐ] Çóµ÷¼Á +6 «lty 2026-03-25 7/350 2026-03-28 13:13 by ÌÆãå¶ù
[¿¼ÑÐ] 070300Çóµ÷¼Á306·Ö +4 26ÒªÉϰ¶ 2026-03-27 4/200 2026-03-28 13:06 by ÌÆãå¶ù
[¿¼ÑÐ] 266·Ö£¬Çó²ÄÁÏÒ±½ðÄÜÔ´»¯¹¤µÈµ÷¼Á +7 ÍÛºôºßºôºß 2026-03-27 9/450 2026-03-28 12:22 by zllcz
[¿¼ÑÐ] µ÷¼Á +3 ºÃºÃ¶ÁÊé¡£ 2026-03-28 3/150 2026-03-28 12:04 by Íõ±£½Ü33
[¿¼ÑÐ] 292Çóµ÷¼Á +14 ¶ì¶ì¶ì¶î¶î¶î¶î¶ 2026-03-25 15/750 2026-03-28 08:45 by WYUMater
[¿¼ÑÐ] Çóµ÷¼ÁÍÆ¼ö ²ÄÁÏ 304 +15 ºÉ°üµ°hyj 2026-03-26 15/750 2026-03-28 04:13 by fmesaito
[¿¼ÑÐ] 348Çóµ÷¼Á +4 СÀÁ³æ²»ÀÁÁË 2026-03-27 5/250 2026-03-27 12:47 by ¹û¹ûÂèßä
[ÂÛÎÄͶ¸å] Journal of Mechanical Science and Technology +3 Russ_ss 2026-03-25 5/250 2026-03-27 10:49 by ½С¹û»­´ó±ý
[¿¼ÑÐ] 336²ÄÁÏÇóµ÷¼Á +7 ³ÂäÞÓ¨ 2026-03-26 9/450 2026-03-27 00:20 by wxiongid
[¿¼ÑÐ] ²ÄÁÏר˶ 335 ·ÖÇóµ÷¼Á +4 ¾Ü¾øÀ䱩Á¦ 2026-03-25 4/200 2026-03-25 18:45 by haxia
[¿¼ÑÐ] Ò»Ö¾Ô¸¼ªÁÖ´óѧ²ÄÁÏÓ뻯¹¤303·ÖÇóµ÷¼Á +4 Ϊѧ666 2026-03-24 4/200 2026-03-25 11:27 by BruceLiu320
[¿¼ÑÐ] 300·Ö£¬²ÄÁÏ£¬Çóµ÷¼Á£¬Ó¢Ò»Êý¶þ +5 ³¬ÔÞµÄ 2026-03-24 5/250 2026-03-24 21:07 by ÐÇ¿ÕÐÇÔÂ
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û