light barrier

基本解释

Carob extract added as a light barrier.
卡羅伯提取新增爲光障。
Yes, you dont need to clean your ear for ear wax. I am talking about light barrier.
是的，各位不用清理你的耳油，我說是正是光障。
blog.sina.com.cn
Food packaging bag (roll film): It has good water, oxygen and light barrier properties, suitable for candies, biscuits, milk powder, chocolate, puffed food products.
食品包裝複郃袋（卷膜）：具有良好的水份、氧氣及光線阻隔性，適郃於糖果、餅乾、嬭粉、巧尅力、膨化食品等産品。

Then the researchers came up with the idea of a light barrier.
FORBES: Using A Light Barrier To Repel Mosquitoes
Some scientists have long thought there might be a way to surpass the light barrier, and if so, certain limited kinds of time travel might be possible.
FORBES: Light's Limit: There's No Getting Around It
But in the 1990s Gilder became convinced that the speed of light would be the final unpassable barrier governing the pace of all digital technology.
FORBES: Digital Rules