1) Tsiv chaw rau qhov chaw zoo dua.
2) Sim txhuam qhov nto sab nraud ntawm cov yeeb nkab, thiab siv cov khoom sib txuas txaus kom ua rau lub zog ntawm lub teeb liab nce ntxiv.
3) Kho qhov chaw ntawm lub transducer kom ntsug thiab kab rov tav; xyuas kom tseeb tias qhov nrug ntawm lub transducers yog tib yam li tus nqi M25.
4) thaum cov yeeb nkab khoom tsis haum rau kev xa xov ultrasonic; peb lub tshuab hloov pauv kub-topped pom zoo.
Lub sijhawm tshaj tawm: Plaub Hlis-01-2022