mental calculation meaning in Chinese

心算

She did a swift mental calculation .
她头脑里敏捷地盘算了一下。
The neural correlates of mental calculation : an fmri study on the effects of aging and task difficulty
青老年组不同难度下心算活动的脑功能磁共振成像研究
After a mental calculation , fermi announced to his team that the bomb ' s energy had equated 10 , 000 tons of tnt
经过大脑计算，费米向他的队员们宣布爆炸的原子弹的能量相当于1万吨烈性炸药。
Our place in the golden age is no longer a matter of mental calculation , but a beautiful voyage home guided by our innermost nature . trust seems to be paramount on this exciting new journey for our minds no longer comprehend what may happen , how it will or why
在这个令人兴奋的全新旅程中，最重要的是对上帝的信心，因为我们的头脑对于人生旅程中可能发生的情况，例如：事情是如何发生为何发生等等情况，往往无法完全理解。