1) difficult to grind materials
难磨材料
2) difficult-to-grind material
难磨削材料
1.
Difficult-to-grind material (e.
难磨削材料(如高温合金)具有一系列优良的物理机械性能，因此在航空、航天、船舶、石油、化工等工业部门中得到了广泛的应用。
3) difficuty maching material
难加材料
5) wear resistant material
耐磨材料
1.
The application of wear resistant materials in Wobei branch plant of Huaibei Coal Preparation Plant
耐磨材料在淮北选煤厂涡北分厂中的应用
2.
Based on database technology and designing method of modularization,adopting production rules to express knowledge,database knowledge with a large amount of data of wear resistant materials,experience knowledge of expert and principle of materials selection had been established,the whole frame of the materials selection expert system of wear resistant materials had been designed.
基于数据库技术和模块化设计方法,采用产生式规则知识表示方式,将耐磨材料的大量相关数据、专家经验知识和选材准则构成知识库,设计了耐磨材料选材专家系统整体框架。
补充资料：难夫难妻(难ｎàｎ)
一名《洞房花烛》。故事片。亚细亚影戏公司1913年摄制。郑正秋编剧，张石川、郑正秋导演。一对素不相识的青年男女，经媒婆撮合拜堂成亲，在封建礼教桎梏下开始艰难的夫妻生活。为中国第一部故事片。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条