扩散系数是传质过程的一个重要参数。
Diffusivity is an important parameter of the mass transfer process.
在表面覆盖度比较高时，表面扩散系数有一极大值。
There is a maximum of the surface diffusivity in high surface coverage.
各期病灶表观扩散系数值及在弥散加权成像上信号不同。
The signals on ADC value and DWI of the focus were different in various stage.
各期病灶表观扩散系数值及在弥散加权成像上信号不同。
The signals on ADC value and DWI of the focus were different in various stage.
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