the act of discharging surface water and scum from a boiler using a surface blow.
| 单词 | θ214188 | 
| 释义 | society > occupation and work > equipment > machine > machines which impart power > boiler > 			[noun]		 > removal of water or air from (3)		 surface blow-off1852 the act of discharging surface water and scum from a boiler using a surface blow. blowing-off1863 = blow-off n. (a) at blow-, comb._form affix 1. blowing-througha1877 = blow-through n. at blow-, comb._form affix 1.  | 
	
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