[流量] 請(qǐng)教關(guān)于均速管流量系數(shù)K的計(jì)算 |
| |
小黑屋|Archiver|計(jì)量論壇
( 閩ICP備06005787號(hào)-1—304所 )
電話(huà):0592-5613810 QQ:473647 微信:gfjlbbs
閩公網(wǎng)安備 35020602000072號(hào)
GMT+8, 2025-12-10 11:50
Powered by Discuz! X3.4
Copyright © 2001-2023, Tencent Cloud.