| 单词 | tube-sheet | 
| 释义 | > as lemmastube-sheet   tube-sheet  n. = tube-plate n. ΘΚΠ society > occupation and work > equipment > machine > machines which impart power > boiler > 			[noun]		 > parts of > plates shell1839 shell-plate1857 tube-plate1864 throat plate1872 tube-sheet1877 shell-plating1894 tube-head1911 1877    E. H. Knight Pract. Dict. Mech.  				Tube~sheet. 1903    Daily Chron. 20 Jan. 6/3  				The boiler tubes getting choked up..through the tubes leaking in the back tube sheet. < as lemmas  | 
	
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