multigrade

adj.

（润滑油）多级通用的，多品位的，稠化的；

Multigrade teaching: towards an international research and policy agenda
The effectiveness of multigrade schools in Colombia
Multigrade teaching in Peru, Sri Lanka and Vietnam: an international research project
Ranking the NTCIR Systems Based on Multigrade Relevance
Ranking the NTCIR Systems Based on Multigrade Relevance
New performance metrics based on multigrade relevance: Their application to question answering
The viscoelastic properties of multigrade oils and their effect on journal-bearing characteristics
Cognitive and Noncognitive Effects of Multigrade and Multi-Age Classes: A Best-Evidence Synthesis
Achievement Evaluation of Colombia's "Escuela Nueva": Is Multigrade the Answer?
Constraints to Implementing Educational Innovations: The Case of Multigrade Schools