主要机件 meaning in Chinese

critical part

The main parts of the machines adopt imported accessories and it has low rate of reparing . it can reduce customer , s cost of products
机器主要机件采用进口配件、返修率低，降低用户的产品成本。
Flour milling rollers are the critical of roller - milling machines . they are used to mill such grain as others into carious small flour products
磨辊是辊式磨粉机上的主要机件，用于将咖啡、麦芽、大麦、小麦及其他植物磨制成各种细度的粉状制品。
By applying the basic principles for optimizing design of structure based on the finite element method and aiming at the problems , such as nonlinear contact problem involved in special hydraulic spanner , the main part of tank track hydraulic regulator , etc . , the calculation analysis and study based on finite element optimization is conducted and the optimized size and shape of spanner are obtained , and the structural characteristics and stress state are obviously improved
摘要运用有限元法进行结构优化设计的基本原理，针对坦克履带液压调整器特种液压扳手主要机件所涉及非线性接触等问题，进行了有限元优化的计算分析与研究，得到了优化的形状与尺寸，结构特性与受力状况得到明显改善。