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Cynthia halted her make-work scrubbing, surprised by the question.
The others beat a hasty retreat as soon as they learned there were no fatalities, finally leaving Dean and his wife alone, with only Janet obliviously scrubbing away somewhere above.
The series of operations connected with the manufacture and distribution of coal gas embraces the processes of distillation, condensation, exhaustion, wet purification by washing and scrubbing, dry purification, measuring, storing and distribution to the mains whence the consumer's supply is drawn.
The process is termed washing or scrubbing, and is carried out in various forms of apparatus, the efficiency of which is dependent upon the amount of contact the apparatus allows between the finely divided gas and water in a unit area and the facility with which it may be cleared out.
Scrubbing a dry window may leave tiny scratches.