... potentiometer lamp 电位器灯泡 prefocus lamp 聚光灯, 定焦灯 preheat fluorescent lamp 预热荧光灯 ...
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pole-control focus lamp 杆控聚光灯
I can't expose my skin under the focus lamp too long.
我不能把皮肤暴露在聚光灯下太久。
He put them on and his bedroom came into clearer focus, lit by a faint, misty orange light that was filtering through the curtains from the street lamp outside the window.
他戴上眼镜，卧室里的景物慢慢变得清晰起来，窗外街灯的灯光透过窗帘，给卧室笼罩了一层朦朦胧胧的橙红色柔光。
The result of the study indicates that when metal halide lamp is used in lighting, it make for the pupil shrink, in other word, it can make people focus on the target.
研究结果表明，当采用富含短波光辐射的金属卤化物灯照明时，会更有利于瞳孔收缩，更有利于聚焦。
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