渗氮在钢表面获得远远超出正常标准的硬度。其硬度范围为900到1,100布氏硬度，这远高于普通表面硬化所获得的硬度。
Nitriding develops extreme hardness in the surface of steel. This hardness ranges from 900 to 1,100 Brinell, which is considerably higher than that obtained by ordinary case hardening.
特殊的材料包括球墨铸铁和钢煅品，大部分机轴经过热处理，表面硬化、渗氮和感应淬火。
Typical materials include ductile iron castings or steel forgings. Most crankshafts require some form of heat treating including case hardening, nitriding and induction harden.
结论肝硬化大鼠肠道出现电节律失常，其机制可能与肠道肌间神经丛胆碱能神经及氮能神经受到损伤有关。
Conclusion: the intestines of cirrhosis rats present electric rhythm abnormity, the damage of NOS and Ach positive nerves in enteric wall of cirrhosis rats may be its underlying mechanisms.
应用推荐