The emphasis of sea-level changes study is to search high accurate indicator.

海平面变化研究的重点是寻找高精度的海平面标志。

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Three failing periods of conodont are influenced by two ice ages, five sea-level changes and rainfalls in the geological history time.

三个衰退期受到地史时期中的二大冰期，五次海平面变化和大气降雨量的影响。

youdao

Theories include sea level changes, ground subsidence as the result of earthquakes, or a tsunami.

海平面变化；地震造成的地平面下降和海啸。

youdao

Fresh from constructing a sea-level canal through the flat Egyptian sand, de Lesseps was determined, without having set foot in Panama and after only the vaguest of topographical studies, that his project through the mountainous central American isthmus would also be a sea-level canal, requiring no locks to cope with changes in altitude.

ECONOMIST: The Panama Canal