| 单词 | ballast engine | 
| 释义 | > as lemmasballast engine   ballast engine  n. ΘΚΠ society > occupation and work > equipment > machine > machines which impart power > engine > other types of engine > 			[noun]		 > other specific engines ballast engine?1748 reciprocator1769 bellows-engine1834 jack engine1847 power producer1859 trunk-engine1864 naphtha engine1876 jinny1877 barring engine1885 shifter1904 yarder1911 mill1918 rocket1919 booster1944 monobloc1944 ?1748    C. Labelye Abstr. Rep. Improvem. River Wear 5  				If all these Remedies prove ineffectual, Ballast Engines must be set to work on the River Thames. 1865    Times 13 Jan. 6/7  				A load was attached to the ballast-engine. 2001    Bristol Evening Post 		(Nexis)	 20 Feb.  				After 12 months he drove the ballast engine at Didcot. < as lemmas | 
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