diffusion coefficient (d)造句

例句与造句

1. The samples were welded at 750 , 800 , 850 and 900 . the diffusion coefficients ( d ) of cu and ni at interface increased with the increase of welding temperature . and comparing with radiation heating , atom diffusion velocity at interface quickened
   其它条件相同时，分别在750 、 800 、 850 、 900的温度下采用脉冲大电流加热连接cu和ni片状材料，结果表明接触面处cu和ni的扩散系数随温度升高而增大。
2. It's difficult to find diffusion coefficient (d) in a sentence. 用diffusion coefficient (d)造句挺难的