They also supervise the process and use of TMDE to perform voltage, current, power, impedance, frequency, microwave, temperature, physical-dimensional, and optical measurements.
ðeɪ ˈɔːlsoʊ sˈuːpɚvˌaɪz ðə pɹˈɑːsɛs ænd jˈuːs ʌv tˌiːˌɛmdˌiːˈiː tə pɚfˈɔːɹm vˈoʊltɪdʒ, kˈɜːɹənt, pˈaʊɚ, ɪmpˈiːdəns, fɹˈiːkwənsi, mˈaɪkɹoʊwˌeɪv, tˈɛmpɹɪtʃɚ, fˈɪzɪkəldᵻmˈɛnʃənəl, ænd ˈɑːptɪkəl mˈɛʒɚmənts.