A new concept, gas column resonance, was established.

首次提出振荡管气柱谐振概念。

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At different structural positions of gas reservoir, seismic reflection character changes with gas column size.

在气层的不同构造部位，随气柱大小的变化，其反射特征也会发生相应的变化。

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The relationship between the irreducible water saturation and the porosity and gas column height is put forward in the paper.

文章给出了束缚水饱和度与孔隙度和自由水界面以上高度的关系。

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With each passing day, and each subsequent addition to the cent column at the local gas station, I have watched the same old debates unfold among the same old talking heads on television.

FORBES: Is America Too Near-Sighted When It Comes To Gas Prices?

In the guest column below, Westport Chief Executive David Demers explains why he thinks the time for natural gas vehicles is now.

FORBES: Guest Column: The Shift To Natural Gas Vehicles Is Happening