Ihe nzacha spirometry na-arụ ọrụ dị iche iche: 1. Mgbochi mmetọ: Site na ijide ụmụ irighiri ihe na ụmụ irighiri mmiri, ihe nzacha spirometry na-enyere aka igbochi nnyefe ...
Opi ultrasonic na-arụ ọrụ dị ka ihe ntụgharị ụda ụda ma ọ bụ ihe ntụgharị, na-amụba ma na-elekwasị anya ultrasonic vibrations n'elu workpiece. Igwe ultrasonic hor...