转柄钻...

n.定倾中心，外心点...

centrepin的音标：centrepin的英式发音音标为：[sen'təpɪn]centrepin的美式发音音标为：[sen'təpɪn]...

the vogue for child-centred education以孩子为中心的教育潮流The fighting has been centred around the town of Vucovar.战斗主要集中在武科瓦尔镇周围。The map will be redrawn centred on the position of Betelgeuse.地图将以参宿四为中心重绘.Given such incentives, ca...

中心销...

定点放大镜...

n.染色中心染色质核仁，核粒...