Znn3bq.jpeg
ÉÇÍ·´óѧº£Ñó¿ÆÑ§½ÓÊܵ÷¼Á
²é¿´: 532  |  »Ø¸´: 6
µ±Ç°Ö÷ÌâÒѾ­´æµµ¡£
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

²¨Ë¹Íå

Í­³æ (ÕýʽдÊÖ)

[½»Á÷] Éó¸åÈËÎʵÄÎÊÌâÊÇʲôÒâ˼?

There are too many significant figures for the concentration.
ʲôÒâ˼?ÊDz»ÊÇÓÐЧÊý×ÖÌ«¶à,¾ÍÊÇСÊýµãÌ«¶à.ÒòΪÎÒµÄÕâ¾ä»°ÖÐÊýΪ1154.23 ng/g
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

hjjh111

ÖÁ×ðľ³æ (ÕýʽдÊÖ)

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
ÊÇÓÐЧÊý×ÖÌ«¶àÀ²
ºóÃæÁ½Î»Ïà¶ÔÓÚÒÔǧΪµ¥Î»¼òֱ΢²»×ãµÀ
7Â¥2009-09-25 10:59:36
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 7 ¸ö»Ø´ð

caifeng1715

½ð³æ (ÕýʽдÊÖ)

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
²»Ã÷°×£¬¸ßÊָϽô°ï°ïÂ¥Ö÷£¡
Follow the life smoothlly
2Â¥2009-09-25 10:01:54
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

nono2009

³¬¼¶°æÖ÷ (ÎÄѧ̩¶·)

No gains, no pains.

ÓÅÐãÇø³¤ÓÅÐãÇø³¤ÓÅÐãÇø³¤ÓÅÐãÇø³¤ÓÅÐã°æÖ÷

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
Ó¦¸ÃÊǵġ£6λÓÐЧÊý×ÖÓÐʵ¼ÊÒâÒåÂð£¿
3Â¥2009-09-25 10:02:16
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

quan3145

Ìú¸Ëľ³æ (ÎÄѧ̩¶·)

²©Ê¿

ngÓ¦¸Ã±äΪug,ÄãÓ¦¸ÃÃ÷°×£¬¾ÍÊÇÊý×ÖÌ«¶àÁË¡£
²»¶ÏŬÁ¦£¬¼ÌÐø½ø²½£¡
5Â¥2009-09-25 10:34:28
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] һ־Ը³¶«´óѧ071000ÉúÎïѧѧ˶³õÊÔ·ÖÊý276Çóµ÷¼Á +22 Ľ¾øcc 2026-04-09 26/1300 2026-04-14 13:14 by wanganpin
[¿¼ÑÐ] ҩѧÇóµ÷¼Á +5 RussHu 2026-04-12 6/300 2026-04-14 13:12 by µÚÒ»ÌìºÃ
[¿¼ÑÐ] ±¾¿Æ211£¬±¨¿¼085601-310·Ö +14 ararak 2026-04-13 14/700 2026-04-14 12:44 by fqwang
[¿¼ÑÐ] Çóµ÷¼Á +19 MAXâê㯠2026-04-09 21/1050 2026-04-14 11:11 by ²»ÎÒÀ­ÂÌ¿¨
[¿¼ÑÐ] 305Çóµ÷¼Á +8 Â꿨°Í¿¨boom 2026-04-11 8/400 2026-04-14 09:04 by pengliang8036
[¿¼ÑÐ] 344 ²ÄÁÏרҵ Çóµ÷¼Á211 ÎÞµØÓòÒªÇó +8 hualkop 2026-04-11 8/400 2026-04-12 22:24 by fqwang
[½Ìʦ֮¼Ò] ɽ¶«Ë«·ÇԺУ¿¼ºË³¬¼¶ÎÞµ×Ïߣ¬Áìµ¼ÐÒÔÖÀÖ»ö£¬½ÌʦÔâÑê¿Ö +3 qut2026 2026-04-11 7/350 2026-04-12 20:24 by qut2026
[¿¼ÑÐ] 2±¾£¬³õÊÔ303£¬0860Çóµ÷¼Á +6 floriea 2026-04-12 8/400 2026-04-12 18:13 by zhouxiaoyu
[¿¼ÑÐ] 296Çóµ÷¼Á +8 Íô£¡£¿£¡ 2026-04-09 8/400 2026-04-11 21:02 by ÄæË®³Ë·ç
[¿¼ÑÐ] 352 Çóµ÷¼Á +6 yzion 2026-04-11 8/400 2026-04-11 16:24 by Ã÷Ô´ËʱÓÐ
[¿¼ÑÐ] 22408 327·ÖÇóµ÷¼Á +4 ÔÏ·çkon 2026-04-10 4/200 2026-04-11 09:51 by Öí»á·É
[¿¼ÑÐ] ²ÄÁÏÀà284µ÷¼Á +40 Ïë»»ÊÖ»ú²»Ïë½âÊ 2026-04-08 48/2400 2026-04-10 23:28 by 314126402
[¿¼ÑÐ] 302·ÖÇóµ÷¼Á +9 ·²ÓïÆíÔ¸ 2026-04-08 10/500 2026-04-10 23:26 by 314126402
[¿¼ÑÐ] ³õÊÔ261 +3 AshtÉÙ 2026-04-10 6/300 2026-04-10 16:38 by AshtÉÙ
[¿¼ÑÐ] Ò»Ö¾Ô¸»ª¶«Ê¦·¶ÉúÎïѧ326·Ö£¬Çóµ÷¼Á +8 Áõīī 2026-04-09 8/400 2026-04-10 12:00 by pengliang8036
[¿¼ÑÐ] 085404£¬285·ÖÇóµ÷¼Á +12 Þ±Þ±¿¼ÑÐ 2026-04-07 14/700 2026-04-09 23:10 by parmtree
[¿¼ÑÐ] 311Çóµ÷¼Á +6 surte 2026-04-08 13/650 2026-04-09 14:00 by surte
[¿¼ÑÐ] 283µç×ÓÐÅÏ¢Çóµ÷¼Á +4 ÈýʯWL 2026-04-08 4/200 2026-04-09 10:21 by wp06
[¿¼ÑÐ] 259Çóµ÷¼Á +5 ¾Í°®³ÔÍÁ¶¹Ñ½Ñ½ 2026-04-07 5/250 2026-04-07 22:40 by JourneyLucky
[¿¼ÑÐ] 307Çóµ÷¼Á +3 Youth@@ 2026-04-07 3/150 2026-04-07 22:00 by hemengdong
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û