内渗物质，一般指气体和液体，通过分子阻碍，从分子间隙穿过叫内渗。
n. endosmose ; intravasation ; endosmosis
依据化学动力学原理和内扩散理论，研制成功了无脆性快速气体渗氮新工艺。
According to chemical dynamics principle and internal diffusion theory, a no-brittle fast nitriding method has been developed.
工作空间是由一绝缘高密度玻璃棉英寸外柜，和内饰是腐蚀性，耐渗铝钢制成。
Work space is insulated from the outer cabinet with one inch of high density mineral wool, and interiors are made of corrosive-resistant aluminized steel.
同时，共渗在空心滚子内表面造成的压应力对改善弯曲疲劳性能有利。
Meantime, the compressive stress in inner surface of hollow roller by nitrocarburizing is available for improvement of bend fatigue property.
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