The original design of valve plate to open the gas valve is hanging in the channel, the possession of an effective diameter about 20%.

而原设计阀板打开是悬于阀体的气体通道内，占有有效通径20%左右。

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The sincere desire to learn surely gets sincere desire of teaching: 'Open the gas switch and add air with inflator , it is the power of mixed gas.

诚心的学当然得到诚心的教：“开煤气考克，再用打气筒补进空气，这就是混合气体的威力。”

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Allen also may order BP to open the cap and let oil and gas flow via pipelines to vessels on the sea surface where it will be separated, stored and burned.

艾伦可能还会命令BP打开控油罩让油、气流通过管道输送到海面的舰船以便他们在那里能够被分离、储存和焚烧。

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On reaching the shale, the mixture of water and fracking fluid bursts open the rock and the sand keeps the fractures open, allowing the gas to flow to the surface.

ECONOMIST: Fracking

Carbo Ceramics is a leader in making what's called ceramic proppant, which is the synthetic material, sand-based often, with chemicals that are injected into the fractured rock to hold open the cavities so the natural gas goes up into the piping that captures it.

FORBES: Intelligent Investing

The administration will develop a long-term plan for extreme weather to ensure power and heat is restored quickly, the gas stations stay open, hospitals maintain power and the city's transportation system keeps operating.

WSJ: Mayor Celebrates His Achievements