The sprinkler is composed of sprinkler frame, sealant and glass bulb.

该喷头主要由喷头架、密封件及玻璃球组成。

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The sprinkler is composed of sprinkler frame, sealant and glass bulb.

该喷头主要由喷头架、 密封件及玻璃球组成。

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Through a carbonized cotton thread in a vacuum glass bulb. His invention proved that.

一个真空玻璃灯泡中的碳化棉线。他的这项发明证明。

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Chilton pulls out a prop to illustrate his point: a glass bulb about two inches high.

WSJ: Gen. Kevin Chilton: Sounding the Nuclear Alarm

In the light from the overhead bulb with its old glass shade, mixed with sunlight from the window on the nearby landing, I saw myself reflected clearly.

NEWYORKER: Miracle Polish

The solution was a vacuum cap that sits over the whole unit, much like the glass globe surrounding the tungsten filament in a flashlight bulb.

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