The initial or frozen-in double refraction is replaced by an equivalent or virtual state of stress.

初双折射或被冻结的双折射，可用一个等效或有效应力状态来代替。

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It could continue as a virtual state even though it is a rock under the ocean and its people no longer live on that piece of land.

它可能作为一个虚拟的国家继续存在，尽管它已是海里面的一块石头，并且它的子民已经不再生活在那里。

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"That's why today, I am please to announce that over the next year, the State Department will be creating Virtual Student Foreign Service Internships to harness the energy of a rising generation of citizen diplomats."

VOA: special.2009.06.05

Aristotle lived at the virtual cusp of the world of the autonomous city-state of the Greek polis.

亚里士多德住在可说是希腊城邦世界中,最顶尖的自治城市。

耶鲁公开课 - 政治哲学导论课程节选

Yet whole industries are still virtual state monopolies, including banking, distribution and telecoms.

ECONOMIST: China��s private surprise

Harvesting asteroids, creating a radically transparent virtual world state and replacing workers with intelligent robots are all very well, but unless our big tech companies recognize their social responsibilities, I fear that our real future could be as disturbing as the science fictional one presented in Ridley Scott's blockbuster.

CNN: STORY HIGHLIGHTS

Virginia Democrats have been able to exploit the changes in the electorate into statewide electoral success after years in which the Republicans had a virtual lock on the state.

CNN: Obama in position to take Virginia from GOP