| 单词 | umbrella sail | 
| 释义 | > as lemmasumbrella sail   umbrella sail  n. a sail constructed partly on the principle of an umbrella. ΘΚΠ society > travel > travel by water > vessel, ship, or boat > equipment of vessel > masts, rigging, or sails > sail > 			[noun]		 > other sails fuk1465 tilt-sail1620 wing-sail1794 umbrella sail1900 1900    Pearson's Mag. Aug. 143  				The umbrella sail can be set or furled in a minute; it does not close up as does an umbrella, but each side shuts up like a fan. < as lemmas | 
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