单词	Kotonami
释义	Kotonami 📍琴南日
随便看	double rocker arm mechanism double rocker flanged butterfly valve double rocker mechanism double-rocker mechanism double-rocker mecha-nism double rocking arms steering mechanism double rocking lever double rod double rod cylinder double rodded line double rod insulator double rodpneumaticcylinder double rod pneumatic cylinder double Roebel bar double role double-role double roles double-role teacher double-role teachers doubleroll double roll double-roll double roll breaker double roll coater double roll crusher