dynamic mathematical model的用法和樣例：
例句
- A dynamic mathematical model for surface heaters is presented in the paper.
建立了表面式加熱器的高精度的動態數學模型。 - It is difficult to obtain the dynamic models of converters, overlong overhead HVDC lines and passive filters in audio frequency.
然而，由於運行工況及氣候的影響，難以求取換流器及長距離高壓架空線路在音頻帶內的動態數學模型。
