lcdavis16
31.07.2019 •
Mathematics
If the room is 50 ft x 50 ft with a 10 foot ceiling, how many negative air machines are
required, if every machine delivers 2000 cfm, to obtain the standard air changes per hour?
how many air machines?
how many spares?
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Ответ:
A. C. E.
Step-by-step explanation:
The last one is my favorite