troffer
n. (天花板的)暗灯槽;(荧光灯)凹形反光槽
n.(荧光灯)凹形反光槽,暗灯槽
ataxia backland blotting demobilization electrochemistry hypochondrium minuteness下载迅蛙App
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n. (天花板的)暗灯槽;(荧光灯)凹形反光槽
n.(荧光灯)凹形反光槽,暗灯槽
ataxia backland blotting demobilization electrochemistry hypochondrium minuteness