单词	石砾培养
释义	石砾培养gravel culture
随便看	four quadrant arctangent four-quadrant characteristic curve four-quadrant converter four quadrant convertor four-quadrant cycloconverter four-quadrant inverter four quadrant multiplier four-quadrant multiplier four quadrant operation four-quadrant operation four quarter plan four quarters and 8 directions or regions, fourragere fourragère fourragères four-rail track four rayed rattail four rayed rattail--1976--coryphaenoides subserrulatus makushok fourrier four ring four-rod connector four-rod display assembly four-roll bending machine four-roller mangle four roller wave generator