The distribution characters of pressure energy field and moist enthalpy field were analyzed, and their possible influences on the occurrence of heavy rainfall also were estimated.
通过分析压能场与湿焓场的分布特征， 讨论了它们对暴雨发生可能产生的影响。
Temperature field, pressure field, energy field and stress field are the main contents in the study of fluid dynamic field.
温度场、压力场、能量场和应力场是流体动力场研究的主要内容。
Methods A hydrophone was used as energy converting equipment to collect wave of acoustic pressure in the field of ultrasound.
方法：采用水听器作为换能器，通过采集超声信号在空间声场内一点的声压波形。
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