Aiming at the bigger computing error caused by the computing method depending oncentres of gravity, an improved method is put forward.
并针对“重心法”计算容量误差大的弊病，提出了一种改进的计算方法。
2
The earthquake centres had been plotted on a world map.
地震震中均被标示在一张世界地图上。
《牛津词典》
3
Discussion now centreson whether the route through the maze is communicated as a "left-right" sequence of turns or as a "compass bearing and distance" message.