face pitch to diameter ratio的意思|示意
美 / /
英 / /
面节距直径比
face pitch to diameter ratio的网络常见释义
叶面螺距与直径比 ... 实效螺距直径比 effective pitch ratio 叶面螺距与直径比 face pitch to diameter ratio 最大叶厚直径比 maximum blade thickness ratio ...