34 / | HD | DRYING AND GAS OR VAPOR CONTACT WITH SOLIDS |
282 | DF | PROCESS {24} |
307 | .~ Retarding or shielding of treatment {4} | |
308 | DF | .~.~> Radiation applying with shielding |
309 | DF | .~.~> Shielding by selective application of gas or vapor flow |
310 | DF | .~.~> Application of temporary coating |
311 | DF | .~.~> Shielding by use of physical barrier to treating gas or vapor |