单词 | ejector |
释义 | ejector [ē`jek·tǝr] ENGINEERING 1. Any of various types of jet pumps used to withdraw fluid materials from a space. Also known as eductor. 2. A device that ejects the finished casting from a mold. ORDNANCE A device in the breech mechanism of a gun, rifle, or other firearm which automatically throws out an empty cartridge case, or unfired cartridge, from the breech or receiver. |
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