centre align

基本解释

Align pivot point to world and centre to object and place at base.
调整轴点到世界，放在物体的基座中心。
7Sydney, Australia: Venus (centre), Jupiter (left), Mercury (right) and Mars (bottom) align in the eastern sky during the early morning.
悉尼，澳大利亚（Sydney Australia）：清晨东方的天空，排列着金星（中心），木星（左），水星（右）和火星（下）四星。
Using encoder to measure stroke, to do calculation to display coil diameter so that the coil can be guaranteed to align with the centre of uncoiler barrel.
采用编码器测量行程，计算并显示带卷直径，保证带卷对推开卷机卷筒中心。