clear zone zone

the alternative occurrence of fractured zone and non-fractured zone

trade-wind zone [= zone of trade wind]

zone by zone upgoing

1D periodic dielectric material

1-periodic

2(n)-periodic

2-periodic

2π Periodic Solution

a periodic array of cracks

absorbing periodic stable domain

addephagia periodic

additional periodic signal

almost periodic behavio(u)r

almost periodic function

Almost periodic point

almost periodic sequence

almost periodic solution

almost periodic solutions

Annual periodic state