... 天棚照明灯具 lampfixture 凹圆形天棚照明 cove lighting 天棚照明配件 ceiling lamp fixture ...
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... 天棚灯，吊灯 ceiling lamp 天棚照明配件，吊灯配件 ceiling lamp fixture 天花板灯(具)，顶灯 ceiling luminaire ...
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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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