透镜中心厚度测量规lens center thickness gauge
（核仁）纤维中心fibrillar center
活性中心active center
【运输】车床顶尖back center (lathe center)
温中健脾warm the center and fortify the spleen
发育中心developmental center
【化】 质心坐标center-of-mass coordinate
枳实理中丸Unripe Bitter Orange Center-Rectifying Pill