A、A.carrier frequency
B、B.pulse repetition rate
C、C.pulse length
D、D.pulse repetition time
更多“The number of pulses of energy transmitted per second is call the（）.”相关的问题
A、High frequency pulses B、Combinations of high and low frequency pulses C、The same frequency for all stations in a chain D、Varied long and short pulses
A、the number of packages B、the number of weight C、both the number of packages and of the weight D、neither the number of the packages nor of the weight
A、the pulse-phase system B、the pulse Doppler system C、the pulse system D、the pulse interval
A、Number of drives X capacity of the smallest drive B、(Number of drives 2) X capacity of the smallest drive C、Number of drives X capacity of the largest drive D、(Number of drives 1) X capacity of the smallest drive
A、The cetane number affects the amount of injection lag B、The cetane number is an indication of the fuels viscosity C、Ignition lag is reduced with fuels having a high cetane number D、The cetane number is of little significance in the combustion process
A、The cetane number is obtained by comparing the fuel with cetane a colorless liquid hydrocarbon B、The higher the cetane number, the shorter the ignition lag C、The highest cetane number of fuel is 100 D、All of the above
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