Objects in the night sky are resources that provide everyone with wonder. But light pollution threatens to prevent those wonderful sights from being seen.
夜空中的物质是能给人们引起幻想的资源，但是光污染阻止了我们将看到的一些奇妙的影像。
Light weight and small volume, convenient maintenance. Its closed type structure can effectively prevent dust pollution.
体积小重量轻，维护保养方便，封闭式设计时可防止粉尘污染。
The composite layers can prevent sealant in the packaging bottle from pollution caused by water and light in the air, and keep the performance and the quality of products well.
上述复合层可以防止包装瓶内的密封胶受到空气中水分和光线的污染，很好地保持了产品的性能和品质。
Simple structure, reliable running, convenient installation, light weight, small size, easy maintenance, and the enclosed type can prevent dust pollution.
振动给料机结构简单，运行可靠，调节安装方便，重量轻，体积小，维护保养方便，当采用封闭式结构机身时可防止粉尘污染。
Simple structure, reliable running, convenient installation, light weight, small size, easy maintenance, and the enclosed type can prevent dust pollution.
振动给料机结构简单，运行可靠，调节安装方便，重量轻，体积小，维护保养方便，当采用封闭式结构机身时可防止粉尘污染。
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