Sau cov teeb liab lub zog thaum lub sijhawm teeb tsa thawj zaug ntawm lub transmitter thiab transducers. Thaum lub zog teeb liab poob qis 50%, txawm hais tias lub 'meter' tseem ua haujlwm li qub, lub zog teeb liab tau txo qis ntau piv rau qhov teeb tsa thawj zaug. Lub sijhawm no, nws raug pom zoo kom tshem cov transducers ntawm cov yeeb nkab, rov siv cov khoom sib txuas, thiab rov nruab lawv kom ntseeg tau tias qhov ntsuas raug thiab ruaj khov.
Lub sijhawm tshaj tawm: Cuaj hlis-18-2025