A core taken so as to preserve the in-situ water saturation of the rock. A native-state core is usually drilled with oil-base mud or crude oil from the same reservoir.

使用油基泥浆或原油钻取的岩心，以保证岩心的含水饱和度与岩石在储集层状态的含水饱和度相同。

youdao

Because it usually exists in a metallic state, it was preferentially incorporated in Earth's core as the planet cooled and consolidated.

因为它通常以金属的状态存在，并且在地球的冷却和固结的过程中，会优先合并到地核中。

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This situation leads to the design of non-business-oriented services that do not reflect the desired target core systems state, greatly limiting the effectiveness of the SOA approach.

这种情况下可能会设计出不面向业务的服务，不能反映所需的目标核心系统状态，从而极大地限制了 SOA 方法的有效性。

youdao

Now,the Obama administration supports what are known as the Common Core State Standards.

VOA: special.2010.07.22

Nearly every state in the U.S. is adopting some form of the standards, known as the Common Core State Standards, but New York is one of the first states testing students on the changed content.

WSJ: Cheating Claims Rock Long Island

Private-housing prices in the city-state's core central region rose 0.6% in the second quarter, compared with a 0.6% fall in the January-April period.

WSJ: Singapore Home Prices Swing Higher

Justice Anthony Kennedy suggested that Doma was an attempt by Congress to "regulate" marriage, which under the Constitution is a core state police power.

WSJ: Review & Outlook: 'Til the Supreme Court Do Us Part