求助化工大神,传质单元高度HOG和传质单元数NOG的O是什么意思

Alfredo Linguini-avatar

Alfredo Linguini

2020-04-16T02:58:09+00:00

这个传质单元高度HOG和传质单元数NOG的O是什么意思的缩写?
[img]https://img.nga.178.com/attachments/mon_202004/22/-7Q5-bqj3ZaT3cSsg-lc.jpeg.medium.jpg[/img]
Telepathic Coral-avatar

Telepathic Coral

总?overall?