Bear in mind that the chief ray is now principal ray.

记住，此时主光线就是主点光线。

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Telecentric lens has parallel chief ray with its optical axis and is ideal for co-axial lighting.

远心镜头拥有与它的光轴平行的主光线，同轴照明是非常理想的。

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Microsoft may soon be joining the fray, and in fact is steadily building out its Web-based service business under the direction of Chief Software Architect ray Ozzie.

微软公司可能不久将加入这一竞争行列，事实上，微软公司正稳步在首席软件技术官雷·奥齐的指导下建立其基于网络的服务性行业。

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U.S. Transportation chief Ray LaHood needs more information to be convinced that Boeing's proposed fixes to batteries on its 787 Dreamliner are adequate to enable the jet to resume commercial flights.

WSJ: What's News

Commercial airplane chief Ray Conner was dispatched to represent Boeing at a Jan. 11 news conference with senior U.S. government officials, and Mr. McNerney has assigned Mr. Conner and other executives to handle much of the contact with airlines, according to a person familiar with the customer conversations.

WSJ: The Two Men Behind the 787

The bank's internal communications chief, Ray O'Rourke , has a background in crisis PR from his days as an executive at Burson-Marsteller, where he represented Pan Am Airlines in the Lockerbie air disaster and Perrier in its more recent benzene fiasco.

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