The distance between orifice groups is another parameter associated with stability. 噴孔組合之間的距離是與不穩定性有關的另一參數。
Improvement of the orifice discharge coefficient may not result in stability improvement as illustrated in one test series. 由一系列的試驗說明，噴孔流量係數的改善並沒有導致穩定性的改進。
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