Chemical energy, which is everything from wood to crude oil to gasoline to coal, consists of playing with the electrons, changing their energy state.

从木头、原油、汽油到煤炭，它们中释放出来的化学能量是通过改变其中电子的能量状态实现的。

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State officials, who had previously approved the utility's conversion of another boiler to burn wood, watched the testing procedure closely.

该州官员之前已经批准了Public Service将一个锅炉变成烧木头。他们也仔细考察了这次试验地过程。

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Salt Lake City, US: the execution chamber at Utah State Prison after Ronnie Lee Gardner was executed by firing squad. Four bullet holes are visible in the wood panel behind the chair.

美国，盐湖城：罗尼。李。加德纳被枪毙后的犹他州州立监狱死刑室，椅子后的木板上四处弹孔清晰可见。

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Coal and wood continue to be important to the state's economy.

VOA: special.2009.07.20

State Department Acting spokesman Robert Wood said the U.S.team, of "several" nuclear experts, was told to leave the site immediately.

VOA: standard.2009.04.15

State Department Acting Spokesman Robert Wood says U.S.officials are in contact with regional allies and other concerned governments to try to "head off" the launch.

VOA: standard.2009.03.12

Mr. Zuckerberg is currently fighting a battle with Paul Ceglia, a New York state wood-pellet salesman who has argued that a 2003 contract with Mr. Zuckerberg gives him claim to a large stake in the company.

WSJ: Winklevoss Twins Won't Appeal Facebook Case to Supreme Court

Wood said Secretary of State Hillary Clinton had been in touch with representatives of the four other permanent five nations and would make more calls on Monday.

CNN: Rocket launch isolates North Korea, U.S. says

It produces pulp from raw wood, but also boasts state-of-the-art machines to make the speciality papers that constitute most of its production.

ECONOMIST: Why paper making is becoming less volatile