24СʱÈÈÃŰæ¿éÅÅÐаñ    

Znn3bq.jpeg
²é¿´: 2272  |  »Ø¸´: 8
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

cjf3330510

½ð³æ (ÕýʽдÊÖ)

[ÇóÖú] ÆøÒºÁ½ÏàÁ÷³ä·Ö·¢Õ¹

ÆøÒºÁ½ÏàÁ÷»ìºÏÒÔºóÐèÒª¶à´óµÄ³¤¾¶±È²ÅÄܱ£Ö¤Á÷Ìå³ä·Ö·¢Õ¹ÄØ£¿
Ͷ¸å·µÐÞ£¬Éó¸åÈËÎʵ½ÎªÊ²Ã´L/D´óÓÚ100¾ÍÄܱ£Ö¤³ä·Ö·¢Õ¹£¬ÓÐʲô¸ù¾Ý£¿´ó¼Ò¿´ÎÄÏ×µÄʱºòÓÐûÓÐÓ¡Ïó¡£¹À¼Æ»Ø´ðÕâ¸öÎÊÌâÐèÒªÒýÓõ½Ïà¹ØÎÄÏס£
лл
¡°why is an L/D of 100 considered as adequate?  Based upon what criterion?¡±
»Ø¸´´ËÂ¥

» ÊÕ¼±¾ÌûµÄÌÔÌûר¼­ÍƼö

fluentÄ£ÄâÎÊÌâ »¨»¨ÊÀ½ç

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

¼ÈȻѡÔñÁËÔ¶·½£¬ÄǾͷçÓê¼æ³Ì
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

changyuan218

ľ³æ (Ö°Òµ×÷¼Ò)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï
cjf3330510: ½ð±Ò+2, ²»ÖªËùÔÆ¡£ 2013-07-30 18:53:43
°ï¶¥£¬¶à¿´¿´£¬ÆäʵºÃ¶àµÄÂ¥·¿Ò²ÊÇÕâÑùµÄ£¬ÆäÔ­Àí¶¼ÊÇÒ»ÑùµÄ£¬Ò»¶¨Òª¶à¿´
9Â¥2013-07-30 11:26:35
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 9 ¸ö»Ø´ð

otten0

½ð³æ (СÓÐÃûÆø)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
cjf3330510: ½ð±Ò+10, ¡ï¡ï¡ïºÜÓаïÖú, ллÄúµÄÄÍÐĴ𸴡£ 2013-07-21 22:01:24
ÔÚ²ãÁ÷ÖУ¬L/D=0.06Re£¬Ô²¹ÜÁÙ½çÀ×ŵÊýRe=2300£¬ÕâÑùËãÀ´L/D=138,µ±È»Õâ¿ÉÒÔËãÊÇÒ»ÖÖ¼«ÏÞ£¬ÔÚʵÑéÖкܶ඼ȡ100À´Éè¼Æ£¬°´ÎÒµÄÀí½âÓ¦¸ÃÊÇÔÚ100´¦½üËÆÈÏΪÒѾ­³ä·ÖÁË£»µ±È»¿ÉÄÜ»¹ÓÐÆäËûµÄÀíÂÛ×÷Ö§³Å£¬ÄÇÎҾͲ»ÖªµÀÁË£¬Ï£ÍûÂ¥Ö÷ÕÒµ½ºóÄÜ·ÖÏíÏ£¬Ìáǰлл£¡
A real and true world only lays in your own heart!
2Â¥2013-07-08 08:51:17
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

qllq1661

ľ³æ (Ö°Òµ×÷¼Ò)

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï
cjf3330510: ½ð±Ò+5, ¡ïÓаïÖú, ллÄú¡£ÎÒ·µ»ØµÄÐ޸ĸåÒ²ÊÇÕâÑù˵Ã÷µÄ¡£ 2013-07-21 22:02:02
»Ø´ðÉó¸åÈËÕâ¸öÎÊÌ⣬×îºÃ»¹ÊÇÒýÓòο¼ÎÄÏ×°É¡£
Â¥Ö÷¶à²é²éÏà¹ØÎÄÏ×£¬¿Ï¶¨ÓÐÈ˽üËÆÈ¡Õâ¸öÖµµÄ£¬ÕâÑùÒýÓü¸ÆªÂÛÎÄ£¬¾Í¿ÉÒÔÁË¡£
3Â¥2013-07-08 10:01:47
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ronaldo13579

Òø³æ (СÓÐÃûÆø)

ÎÒÒ²ÕýÓдËÒÉ»óÄØ
¶ØóÆÀøÖ¾ ¾«ÇÚÇóѧ
4Â¥2013-07-09 10:06:42
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] ʳƷÓëÓªÑø£¨0955£©271Çóµ÷¼Á +7 Éý¸ñ°¢´ï 2026-04-12 7/350 2026-04-12 22:56 by yuyin1233
[¿¼ÑÐ] Ò»Ö¾Ô¸ÖÐÄÏ´óѧ 0855 »úе 286 Çóµ÷¼Á +10 ²»»á³ÔÈâ 2026-04-12 10/500 2026-04-12 22:51 by ÁãÁã¶þ
[¿¼ÑÐ] ²ÄÁÏÏà¹Ø×¨Òµ344Çóµ÷¼ÁË«·Ç¹¤¿ÆÑ§Ð£»ò¿ÎÌâ×é +9 hualkop 2026-04-12 9/450 2026-04-12 22:41 by kyle12138
[¿¼ÑÐ] 297Çóµ÷¼Á +17 ORCHID1 2026-04-10 18/900 2026-04-12 09:59 by zhouwenxian
[¿¼ÑÐ] 0854µ÷¼Á +12 ³¤¹­°Á 2026-04-09 13/650 2026-04-12 09:56 by ÄæË®³Ë·ç
[¿¼ÑÐ] 326Çóµ÷¼Á +6 Shansyn 2026-04-10 6/300 2026-04-12 09:46 by hammer3
[¿¼ÑÐ] 331Çóµ÷¼Á +5 Íõ¹ú˧ 2026-04-11 5/250 2026-04-11 22:56 by Ϫ½§Á÷Ë®
[¿¼ÑÐ] ũѧ0904 312Çóµ÷¼Á +3 Say Never 2026-04-11 3/150 2026-04-11 17:22 by daydayup2005
[¿¼ÑÐ] 085600²ÄÁÏÓ뻯¹¤329·ÖÇóµ÷¼Á +16 Ò¶zilin 2026-04-10 16/800 2026-04-11 11:04 by may_ÐÂÓî
[¿¼ÑÐ] 309Çóµ÷¼Á +14 wdhw 2026-04-10 15/750 2026-04-10 21:06 by zhouxiaoyu
[¿¼ÑÐ] Çóµ÷¼Á +5 ²»»á·ÉµÄÓã@ 2026-04-10 5/250 2026-04-10 19:07 by chemisry
[¿¼ÑÐ] 071000ÉúÎïѧµ÷¼ÁÇóÖú +17 zzzzwww 2026-04-09 20/1000 2026-04-10 15:55 by Çóµ÷¼Ázz
[¿¼ÑÐ] ¿¼Ñе÷¼Á-²ÄÁÏÀà-284 +28 Ïë»»ÊÖ»ú²»Ïë½âÊ 2026-04-08 28/1400 2026-04-09 20:08 by µ¹Êý321?
[¿¼ÑÐ] 0703»¯Ñ§Çóµ÷¼Á +21 ²»ÖªÃûµÄСئ 2026-04-08 21/1050 2026-04-09 18:55 by l_paradox
[¿¼ÑÐ] 348Çóµ÷¼Á +3 candyyyi 2026-04-09 3/150 2026-04-09 17:20 by ¶ÎΰÑÞ
[¿¼ÑÐ] 085600²ÄÁÏÓ뻯¹¤×¨Ë¶329 Çóµ÷¼Á +24 ¶îcc 2026-04-06 25/1250 2026-04-09 16:01 by wp06
[¿¼ÑÐ] Ò»Ö¾Ô¸»ªÄÏʦ·¶´óѧ0702ÎïÀíѧ305µ÷¼Á +4 Äî³£°² 2026-04-07 6/300 2026-04-08 22:53 by bljnqdcc
[¿¼ÑÐ] 296Çóµ÷¼Á +3 Íô£¡£¿£¡ 2026-04-08 3/150 2026-04-08 22:00 by zhouyuwinner
[¿¼ÑÐ] 316Çóµ÷¼Á +4 15318418673 2026-04-07 4/200 2026-04-07 22:12 by hemengdong
[¿¼ÑÐ] Çóµ÷¼Áµ½²ÄÁÏ +5 ³Ì9915 2026-04-06 5/250 2026-04-06 15:21 by yulian1987
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û