| Answer | Crossword Clue |
|---|---|
| blowbacks | BLOWBACK, an escape of gases |
| blowback | an escape of gases |
| traps | U-shaped section in a pipe to prevent the escape of air or gases |
| trap | U-shaped section in a pipe to prevent the escape of air or gases |
| blowbacks | A process in which gases expand or travel in a direction opposite to the usual one, esp. through escape of pressure or delayed combustion |
| blowback | A process in which gases expand or travel in a direction opposite to the usual one, esp. through escape of pressure or delayed combustion |
