单词	stem seal
释义	stem seal 芯轴密封
随便看	urban bridge urban bridges urban building urban building clusters urban building code urban building color urban building complex urban building density urban building land Urban building relocation urban buildings urban building waste Urban build-up area urban build-up land urban built-up area urban built-upland urban buried gas pipeline urban buried pipeline urban buried pipe-network urban circle Urban circle around Beijing-Tianjin-Hebei urban-circling shelterbelt urban bus Urban bus line urban bus route