harmonics waves problems的用法和樣例：
例句
- But the research on harmonic problems has not been reported.
但對這種勵磁機的諧波問題的研究尚未見文獻報道。 - In order to enhance the performance of the hybrid active power filter, and to reduce serious harmonics problems day by day, a new type hybrid active power filter is proposed.
摘要為提高有源濾波器的濾波性能，減少日趨嚴重的諧波問題，提出了一種濾波系統結構。
