relative abundance

常見(jiàn)例句

Helium’s rarity on Earth and relative abundance in America are cosmic and planetary accidents.
氦在地球上存量稀少，而在美國(guó)相對(duì)豐富，這與宇宙和行星的形成過(guò)程是有關(guān)的。
But the relative abundance of quasars in the first billion years of the universe has puzzled astrophysicists.
但是，類(lèi)星體在宇宙誕生的前十億年中的相對(duì)來(lái)說(shuō)很豐富一直使天文物理學(xué)家迷惑不已。
In doing so, the report also detailed the strengths upon which the country can build: a relative abundance of land and natural resources.
為推動(dòng)柬埔寨增長(zhǎng)，該報(bào)告還詳細(xì)介紹了該國(guó)可以依托的優(yōu)勢(shì)：相對(duì)豐富的土地和自然資源。