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He has also found that CFLs last longer when used upright in a lamp-stand, rather than dangling from a ceiling fixture.

记者还发现紧凑型荧光灯直立安装在灯座上比悬吊在天花板固定装置上使用寿命更长。

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You can also drag ceiling fixture shapes, such as the ceiling fan, onto the drawing page.

您还可以将天花板配件形状(例如“吊扇”)拖到绘图页上。

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You can also drag ceiling fixture shapes, such as the ceiling fan, onto the drawing page.

您还可以将天花板配件形状(例如“吊扇”)拖到绘图页上。

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