"102584104"@en-us . "0"^^ . "acoustic delay line"@en-us . "02676097-n"^^ . . "102162848"@en-us . "acoustic delay line"^^ . . . . . "0"^^ . "a delay line based on the time of propagation of sound waves"@en-us . . . . "sonic delay line"@en-us . . . "102676097"^^ . .