名词
中文翻译：投影灯
同义词：
['projector lamp', 'spotlight lamp例句：1. The teacher used a projection lamp to show the math problem on the blackboard.（老师使用投影灯在黑板上展示了数学问题。）2. The projector lamp was dimmed to avoid glare from the screen.（为了不刺眼，投影仪的灯光被调暗了。）']
例句：
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1. The teacher used a projection lamp to show the math problem on the blackboard.
老师使用投影灯在黑板上展示了数学问题。
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2. The projector lamp was dimmed to avoid glare from the screen.
为了不刺眼，投影仪的灯光被调暗了。
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3. The student asked for a projection lamp so he could better see the slides.
学生请求一个投影灯以便更好地看到幻灯片。