34 / | HD | DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS |
282 | DF | PROCESS {24} |
443 | DF | .~ Gas or vapor contact with treated material {17} |
493 | DF | .~.~ Temperature of treating gas or vapor controlled {3} |
495 | .~.~.~ Temperature of gas or vapor regulated by other drying variables |