这反映了附近恒星的光热，2170星系是由其他蓝色反射星云，紧凑的红色发光区域，以及在模糊的背景下对恒星尘埃的飘带组成。
Reflecting the light of nearby hot stars, NGC 2170 is joined by other bluish reflection nebulae, a compact red emission region, and streamers of obscuring dust against a backdrop of stars.
它具有体积小、耗能低、发光热量低、防潮、防震且操作简便的特点。
The LED cold light source has the advantages of small volume, low energy consumption and lighting heat quantity, moisture and shock resistance and simple and convenient operation.
它具有体积小、耗能低、发光热量低、防潮、防震且操作简便的特点。
The LED cold light source has the advantages of small volume, low energy consumption and lighting heat quantity, moisture and shock resistance and simple and convenient operation.
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