A glass envelope is used to contain a gas at about 1 / 1000 atmospheric pressure.

玻璃外壳中的气体压强约为1/1000大气压.

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Lead oxide in the glass envelope of Black Light Blue ( BLB ) lamps.

蓝黑灯管 ( BLB ) 玻璃外罩所含的氧化铅.

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This has lead to a functional, compact structural shell , provided with a glass envelope.

建筑的玻璃外壳是功能性和紧凑的.

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Has developed into a professional production of various specifications aluminum wire glass envelope and professional enterprises.

已发展成为一家专业生产各种规格铝漆包线和玻璃丝包线的专业企业.

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