In agricultural machine equipments, the contact surfaces commonly were damaged by fretting corrosion due to work conditions complexity and the affected of the around environment.
在农业机械装备中，由于环境的影响和工况条件的复杂多变性，在接触面上很容易出现微动磨损造成接触表面的微动损伤。
The experimental results in lab. shown that the disinfectant has very good bactericidal effect and low corrosion to metal equipments.
经实验室试验表明该消毒剂具有灭菌效果好，对金属设备腐蚀性低的特点。
The service life is short when normal anticorrosive coating is used on petrochemical equipments, metal and nonmetal frames and structures to prevent corrosion.
石油化工设备、金属和非金属框架及结构，采用常规防腐涂料防腐，使用寿命短；
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