【电学】层， 磁强记录术

Purkinje cell layer

vacuolar degeneration of odontoblastic layer

algal layer【植】;algal zone【植】;gonidial layer【植】

basal layer, stratum basale (拉)

Bekhterevs layer

ultra-violet filtering layer photography

peer layer protocol

mid-latitude sporadic E layer【气象】