Assertion: leopard's call | /r/HasProperty | 153 to 177 db re 1 μpa
Facets:
Source sentences:
text: The male seals produce loud calls (153 to 177 dB re 1 μPa at 1 m) for many hours each day.
text: The male seals produce loud calls (153 to 177 dB re 1 μPa at 1 m) for many hours each day.