keystone resources
常見(jiàn)例句
- The unified management of water resources in the Tarim River Basin is all along a keystone of water resources management in Xinjiang.
塔裡木河流域水資源統(tǒng)一琯理問(wèn)題，一直是新疆水資源琯理的重點(diǎn)。 - Figs (Ficus spp. , Moraceae) are important fruit resources for many frugivores , particularly during the period when other fruits are scarce, and so be called " keystone species".
榕屬植物爲(wèi)多種食果動(dòng)物重要的食物資源，特別是在其他果實(shí)缺乏的季節(jié)，因此有關(guān)鍵物種之稱。 - The Keystone pipeline would contribute the similarly booming resources of Canada to America, more than a million barrels a day, more than is imported from Saudi Arabia or Venezuela.
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