However, these LEDs tend to produce white light with a cool, bluish tinge.

然而，这些发光二极管只产生冷的带有蓝色光晕的白光。

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But in the last decade, researchers have successfully developed LEDs that produce white light comparable or superior to incandescents.

但是在近十年里，研究员们成功研发出的二极管灯，能产生跟白炽灯光一样强或者比白炽灯光更强的白光。

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This is particularly true in systems that convert light emitted from LEDs, e. g., using phosphor, to other wavelengths in order to produce white light.

在(例如)使用磷光体将从LED发射的光转换成其它波长以便产生白光的系统中尤为如此。

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JFK, when making the plea for equal rights, didn't produce an abstract philosophical argument but rather tried to invite his listeners who were white to engage in perspective taking.

当肯尼迪呼吁实行平等权利时，他并没有提出抽象的哲学理由,而请求那些听他呼吁的白人,从黑人的角度进行思考。

耶鲁公开课 - 心理学导论课程节选

The techniques employed might also help to improve LEDs that produce white light by mixing red, green and blue emitters.

ECONOMIST: Lighting: A brilliant new approach | The

Vatican staff have been preparing the Sistine Chapel, where the conclave will take place, installing the two stoves that will produce white smoke from burnt ballot papers when a new pope is elected.

BBC: Election for new pope to begin on Tuesday

Two stoves that will produce the white smoke from burnt ballot papers have been fitted in the chapel.

BBC: Chimney fitted on Sistine Chapel roof for pope election