This paper deals with the test plant and test results of a gas generator of a by-pass dual-rotor engine with variable duct flow path resistance.

途述了带外函道的双转子发动机内、外函分流，各自通流阻力可以改变的燃气发生器试验装置和试验结果。

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As a by-pass product of steel plant, blast furnace gas (BFG) is a kind of low heat value fuel.

高炉煤气是钢铁冶金行业生产过程的副产品，是一种低热值燃料。

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The U.S. is at last moving in that direction, with the Department of Energy in recent weeks approving the proposal by Cheniere Energy to turn its little-used liquified natural gas import terminal at Sabine Pass on the Louisiana coast into an export terminal.

FORBES: To Import Less Oil, U.S. Must Export More Gas

And recently Turkey has sounded keener, with American backing, for gas as well as oil pipelines to run from the Caspian across Georgia and into Turkey, to by-pass the prickly Russians.

ECONOMIST: Ismail Cem, a Turkish strategist