开架

open shelves (in self-service store or user access library)

to open / to start / to turn on / to boil / to write out (a prescription, check, invoice etc) / to operate (a vehicle) / carat (gold) / abbr. for Kelvin, 開爾文|开尔文[Kai1 er3 wen2] / abbr. for 開本|开本[kai1 ben3], book format

to support / frame / rack / framework / classifier for planes, large vehicles, radios etc

to assume a fighting stance / (fig.) to take the offensive