| 释义 |
plate column层板塔；层板[管]柱plate column板式塔双向☞ plate column-- plate tower-- tray column双向☞ tray tower-- plate column-- tray column双向☞ plate tower-- tray column-- tray tower双向☞ tray tower-- plate column--tray column双向☞ plate tower--plate column双向☞plate tower--pl |