Chung Chi
GR-0431.6.3.6p046.jpg
Revision as of Sep 1, 2020, 11:41:42 AM, created by 172.16.1.125
Q: If there was an accumulation of gas in that hole, is the air course such that it would dispel the gasout of it?
A: No it is impossible to make an air course that would dispel it.
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