权威例句
A 1 kW 500 kHz front-end converter for a distributed power supply systemA 1 kW, 500 kHz front-end converter for a distributed power supply systemAmplified femtosecond optical pulses and continuum generation at 5-kHz repetition rate.Spectral-domain optical coherence tomography at 1.3 um wavelength with 19-kHz A-line acquisition rateGuidelines for Limiting Exposure to Time-Varying Electric and Magnetic Fields (1 Hz – 100 kHz)IEEE Standard for Safety Levels With Respect to Human Exposure to Electromagnetic Fields, 0-3 kHzSonochemical Degradation of Phenol in Dilute Aqueous Solutions: Comparison of the Reaction Rates at 20 and 487 kHzIEEE Standard for Safety Levels With Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHzIEEE Standard for Safety Levels With Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHzIEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz Amendment...