“ramp sight”的概念、定义、翻译、参考文献-科学参考

单词	ramp sight
释义	ramp sight [`ramp ´sīt] ^ORDNANCE Type of metallic gun sight in which the aperture is raised or lowered by moving it forward or backward on an inclined ramp.
随便看	Bali wind balk balking ball ball-and-race-type pulverizer ball-and-ring method ball-and-socket joint ball-and-trunnion joint ballas ballast ballast factor ballast lamp ballast leg ballast line ballast movement ballast passage ballast pump ballast reactor ballast resistor ballast tank ballast tube ball bearing ball-bearing hinge ball-bearing pulverizer ball bonding

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