At 15 euro ($22) a tonne the price is high enough to induce power companies to switch some generation from coal to ga.

每吨15欧元（22美元）的价格足够让电力公司从煤发电转向用气发电。

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Just in time for the trial performance, I was able to maintain power in my singing despite the switch to a head voice.

就在试演的时候，尽管换成了头声，我还是能够保持唱歌的能力。

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The outlook of high frequency switch power supply in application to high fidelity audio frequency power amplifier is indicated.

指出了高频开关电源在高保真音频功率放大器中广阔的应用前景。

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At the core of the Fidelio SoundBar are high quality TI Class-D amplifiers - with a built-in DAC - powered by a compact SMPS (Switch-Mode-Power-Supply) to provide a full digital architecture, delivering highly efficient audio amplification and premium audio quality.

ENGADGET: blogger-avatar

Along the top edge, you'll find the e-ink display and a two-way power switch -- slide it to the left and Ruby behaves like a secure hotspot, slide it to the right and it's a public access point.

ENGADGET: Topic: Mobile

Evolution has arranged financing for methane-capture equipment in Argentina and for a switch by a 120-megawatt power plant in Hungary from coal to biomass fuel.

FORBES: Selling the Blue Sky