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1·The index of refraction for the extraordinary ray is therefore a function of direction.

折射光线的折射率因此在各个方向不同。

2·I feel very lucky that we've got extraordinary technical leaders at the company, like Ray Ozzie and Craig Mundie, who can step up to assume the roles that I've played.

我觉得很幸运，我们公司拥有非凡的技术领导者，像Ray Ozzie和Craig Mundie，他会接替我现在扮演的角色。

3·This was underscored by last week’s announcement of a series of extraordinary X-ray and gamma-ray blasts from a star being devoured by a monster black hole.

上个星期关于恒星发出的特别X射线和γ射线被黑洞吞噬的一系列报告中着重提及此事。