Scientists have unveiled the most accurate map ever produced of the Earth's gravity.
科學(xué)家們發(fā)布了一副最為精確的地球重力地圖。

It seems it is shaped not like a sphere but a potato. A precise model of Earth's geoid is crucial for deriving accurate measurements of ocean circulation, sea-level change and terrestrial ice dynamics.
從圖上看來(lái)我們住的地球不僅不是個(gè)規(guī)則的球形，看起來(lái)還有點(diǎn)像個(gè)坑坑洼洼的土豆。一個(gè)精確的地球水準(zhǔn)面模型對(duì)于推到出精確的洋流、海平面的變化和地球冰川運(yùn)動(dòng)來(lái)說(shuō)都是非常重要的。

The geoid is also used as a reference surface from which to map the topographical features on the planet. In addition, a better understanding of variations in the gravity field will lead to a deeper understanding of Earth's interior.
本次制作的地球水準(zhǔn)面模型在繪制地球地貌時(shí)也將會(huì)被用來(lái)參考。另外這對(duì)人類(lèi)更好的研究重力作用下地球內(nèi)部活動(dòng)產(chǎn)生積極影響。