Its adaptability and good local performance of signal instantaneous frequency and amplitude, thus make the signal expressed as a real physical form.
它的自适应性和局域性能很好的表征信号的瞬时频率和幅度，从而将信号表示成具有实际物理意义的形式。
From compaction temperature, compaction speed and times, oscillation frequency, amplitude as well as mixture performance etc, the paper expounds enhancing the compaction quality of asphalt pavement.
就提高沥青路面压实质量问题，从碾压温度、压实速度与遍数、振频与振幅及混合料特性几个方面进行了阐述。
It is fully hydraulic double driving, with the variable frequency and amplitude, articulated turning, so has good driving performance and gradeability.
全液压双驱动，变频变幅振动装置，铰接转向，具有良好的驱动和爬坡性能。
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