单词	double hexagonal pyramid
释义	double hexagonal pyramid 六角双锥
随便看	ultrasonic videocorder ultrasonic viscometer ultrasonic viscometre ultrasonic viscosimeter ultrasonic viscosity measurement ultrasonic vision Ultrasonicvisualization ultrasonic visualization ultrasonic vitreous silica delay line ultrasonic vortex ultrasonic vortex flowmeter ULTRASONIC VULCANIZATION OF NATURAL RUBBER ultrasonic walking aid ultrasonic ware ultrasonic washbasin ultrasonic washer ultrasonic washing ultrasonic washing machine ultrasonic washing unit ultrasonic water gauge ultrasonic water-immersion focusing ultrasonic water level gauge Ultrasonic water level meter ultrasonic water path scanner ultrasonic wav