The result showed that hardness of crankshaft and cooling way had direct influences on enhancement of surface hardness of nitrocarburizing layer.
结果表明：曲轴基体硬度和冷却方式对共渗层表面硬度的提高有着直接的影响。
2
The direct ct sings included exudation in basal system, meningitis, enhancement and intracranial tuberculosis.
脑结核ct直接征象为脑池渗出、脑膜强化、脑实质结核。
3
Contrast enhancement ct scanning plays an important role in confirming and differentiating diagnosis. CPR offered a direct and easy observing images for clinical doctors.