age classes的用法和樣例:
例句
- Immigration would not, on current trends, make up the shortfall in the working age population.
移居入境是不樂(lè )觀(guān)的,在現實(shí)的趨勢來(lái)看,還不足以去彌補工作年齡階段的人口。 - The invention discloses a separated candida cell group, and most cells in the cell group are in the same age stage.
本發(fā)明公開(kāi)了一種分離的念珠菌細胞群,所述細胞群中大多數的細胞處于同一年齡階段。