计算不能 meaning in English

acalculia
anarithmia

So image reconstruction techniques adopted in ct could not be applied directly in tgs transmission
因此， tgs测量的图像重建计算不能简单地搬用ct所采用的图像重建技术。
For automobile aerodynamics there are many researching works that have to be completed in future , if cfd could be successfully and widely applied in auto manufacture as in the air flight and space flight
在数值计算上收敛性和精度也有待改进。数值计算不能完全替代试验，试验对于校正cfd方法和检验cfd结果是非常必要的。