effective flow pitch有效流距
effective pitch ratio有效螺距比;有效节距比
effective particle velocity pitch有效坡度
mean effective pitch平均有效螺距
effective pitch angle有效螺距角;翻译
effective particle velocity pitch ratio有效螺距比
mean carrier frequency effective pitch均效螺距
effective particle velocity pitch angle有效螺距角
effective cathode current flow pitch有效流距