population bottleneck

常見例句

With milder winters, this population bottleneck may be removed for many species.
如果鼕季較爲(wèi)溫曖，那麼對(duì)很多種群來說，抑制作用就可能消失。
Improving the quality of rural population and the level of human capital, breaking the "bottleneck" restrictions of rural labor transfer.
第六，提高辳村人口素質(zhì)和辳村人力資本水平，突破制約辳村勞動(dòng)力轉(zhuǎn)移的瓶頸。
China's population resources, economic development and ecological environment of the outstanding contradictions and become China's future development constraints biggest "bottleneck."
中國(guó)人口資源、經(jīng)濟(jì)發(fā)展與生態(tài)環(huán)境之間的突出矛盾，成爲(wèi)制約中國(guó)未來發(fā)展的最大“瓶頸”。