co-existing of lithium bond and hydrogen bond

connected bond， unblocked bond

lloyd’s average bond {standard form of average bond}

multicenter

multicenter sound system

MULTICENTER URBAN AGGLOMERATION

multiplecounter

multiprinter

Multicenter studies

Multicenter investigation

Multicenter study

Multicenter trial

Multicenter clinical research

Multicenter clinical trial

Multicenter clinical study

Multicenter-clinical trials

multicenter stu

Multicenter randomized controlled

Multicenter governance