| 释义 |
重心zhòngxīn
1.物体内各点所受的重力产生合力,这个合力的作用点叫做这个物体的重心。{barycentre; centre of mass; centre of gravity; centroid; point in a body at which the mass of various points within the same body may be considered to be concentrated and at which external forces may be considered to be applied}
2.三角形三条中线相交于一点,这个点叫做三角形的重心。{median point; intersection of the three medians of a triangle}
3.事情的中心或主要部分{heart; focus; core; crux}:
工作～{focus of work}|问题的～。{crux of a problem; heart of a matter} |