| 释义 |
petahertz
pet·a·hertz P0217975 (pĕt′ə-hûrts′)n. Abbr. PHz One quadrillion (1015) hertz.petahertz (ˈpɛtəˌhɜːts) n (Electronics) a very large unit of electrical frequency that is equivalent to one quadrillion hertz EncyclopediaSeehertzAcronymsSeePHZ |