短語詞組短語secondary air ratio 二次風(fēng)率Secondary InterferenceTime Ratio 次乾擾時間率;最後提出次乾擾時間率secondary fission ratio 次生裂變比Secondary Compression Ratio 次要壓縮比Secondary drive ratio 二次傳動化secondary emission ratio [物]二次發(fā)射比;二次發(fā)射系數(shù)secondary sex ratio 第二性比;[遺]次級性比secondary pressure ratio 次流壓比secondary electron emission ratio 二次電子發(fā)射系數(shù)secondary -emission ratio 繙譯;二次發(fā)射比英語 返回 secondary ratio