The C437D, E Gas Pressure Switches are pressure-actuated switching devices used in industrial gas system applications for safety shutoff, pressure control, and differential-pressure control.

该C437D，电子气体压力开关的压力驱动开关器件在工业气体安全关断，压力控制系统应用中，和压差控制。

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"At first, I picked an e-bike because I couldn't stand the sickening smell of gas from my scooter." says Zhang Dengming.

“起初，我选用了一辆电动自行车是因为我无法忍受小型摩托车那令人作呕的汽油味。”张登明说。

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'the mass and velocity of the expelled gas,' he told me in an E-mail that has forever endeared him to me,.

‘所放屁的质量和速度，’在那封极其讨我欢心的邮件中，他写道，‘与人体质量相比相当之小。’

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It is not clear what it will be able to do to help revive energy talks with Uzbekistan, Kazakhstan and Turkmenistan, During negotiations in the Czech capital,Prague, the three natural-gas producing nations were not convinced by E.U.offers of more trade and stronger transport links in exchange for their participation in a multi-billion-dollar gas pipeline, known as Nabucco.

VOA: standard.2009.05.11

We can go all the way down -- magnesium aluminum, all the way to this noble gas, 3s23p6 argon, which would be n e and then 3 s 2, 3 p 6.

我们可以继续，镁，铝,一直到惰性气体，氩它是Ne然后。

麻省理工公开课 - 化学原理课程节选

Underground natural gas storage means subsurface storage of natural gas, e.g.

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The "big six" energy providers are British Gas, E.

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For U.S. investors without the wherewithal to jump around in international equties, there are exchange-traded funds like the iShares MSCI Germany Index Fund, which counts Siemens, power and gas company E.

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