1)  Multi-level mining
多中段回采
2)  polycentric
多中心
1.
Network of Polycentric Metropolis in Europe:Introduction of the Po/ycentnc Metropolis,Learning from Mega-city Regions in Europe;
欧洲多中心都市区的网络特征——《多中心大都市：来自欧洲巨型城市区域的经验》引介
2.
The formation of polycentric environmental governance institution─an inspiration for innovation and development of Wenzhou model;
多中心环境治理制度的形成及其对温州发展的启示
3.
Implications of the Concept and Experiences on Polycentric Spatial Planning in Developed Regions to China;
国外多中心规划理念与发展经验对中国的借鉴作用
3)  multiple-center bond
多中心键
4)  Multi-interrupt
多中断
1.
The Implementation of Multi-interrupt NC System Based on STD Bus Microcomputer;
基于STD总线微机的多中断数控系统的实现
2.
This article presents the way to make up the multi-interrupt with octet microprocessor, describes the practical application of 8214 and 8259 chip; The implementation of multi-interrupt in real-time Monitoring & Control system which based on personal computer is introduced and pertinent program is offered with C++ language.
给出了用八位微处理器构成测控系统中多中断扩充的方法,叙述了8214、8259的具体应用。
5)  Multicenter
多中心
1.
Monitoring in multicenter clinical trial;
国际多中心临床试验的监查
6)  multicentric
多中心性
1.
Objective To analyse MRI findings of multicentric craniopharyngioma and improve knowledge to it.
目的　分析多中心性颅咽管瘤的MRI表现 ,提高对本病的认识。
2.
Methods To analyze the characteristec in mammography from 16 cases of multicentric carcinomas of the breast.
目的分析多中心性乳腺癌钼靶X线征象。
参考词条
补充资料：多苯基多亚甲基多异氰酸酯
    多苯基多亚甲基多异氰酸酯，简称PAPI，或称粗MDI，浅黄色至褐色粘稠液体．有刺激性气味。相对密度(20℃／20 ℃)1．2，燃点218℃。PAPI实际上是由50％MDI与50％官能度大于2以上的多异氰酸酯组成的混合物。升温时能发生自聚作用。溶于氯苯、邻二氯苯、甲苯等。PAPI的活性低，蒸气压低，只是TDI的百分之一，故毒性很低。
    用于制造聚氨脂胶粘剂。也可直接加入橡胶胶粘剂中，改善橡胶与尼龙或聚酯线的粘接性能。贮存于阴凉、通风、干燥的库房内，远离火种、热源。严格防水、防潮，避免光照。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。