The cornerstone of OpenOffice development is the UNO component technology.

OpenOffice开发的基础是UNO组件技术。

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South Korea has made green technology a cornerstone of national policy.

韩国则将环保技术作为国家政策的基石。

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Higher mathematics is an important compulsory basic course in each professional course, the cornerstone of the course to further learn other technology and basic course.

《高等数学》是各个专业必修的一门重要基础课，是进一步学习其它技术课和专业课的奠基石。

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The 4Cs are a cornerstone of the modern workforce revolutionized by cloud based technology.

FORBES: Digital Classrooms: Is The Investment Paying Off?

Incorporating the best of Sony technology and premium entertainment, the Xperia NXT series is a cornerstone of Sony's connected experience.

ENGADGET: Sony officially debuts Xperia U at MWC 2012 Mobile

There's some clever custom technology, such as the dual-electrodes the HE90 have between the diaphragm that is the cornerstone of the push-pull principle, that go a long way to helping these cans use to produce their sound.

ENGADGET