短語詞組短語arithmetic progression 等差級數(shù)，等差數(shù)列；算術(shù)級數(shù)，算術(shù)數(shù)列steady progression 穩(wěn)定發(fā)展;穩(wěn)定進(jìn)步weld progression 銲接進(jìn)程geometrical progression 幾何級數(shù);隨順著幾何學(xué)比例;等比級數(shù);幾何等比級數(shù)backward progression 後退步態(tài);繙譯;後退Disease Progression 疾病惡化;疾病進(jìn)展progression agent 增傚劑;改進(jìn)劑increasing progression 遞增級數(shù)geometric progression 幾何級數(shù)；等比級數(shù) 返回 progression