It will take decades and trillions of dollars to convert all the world's fossil-fuel-based energy systems to cleaner systems like nuclear, solar and wind power.

转变世界上所有的化石燃料为基础的能源系统，如核能，太阳能和风能清洁系统，将需要数十年，数万亿美元。

youdao

Workers are attempting to remove the radioactive water from the tsunami-ravaged nuclear compound and restart the regular cooling systems for the dangerously hot fuel.

工作人员正试图把有高辐射积水从被海啸破坏的核化合物中分离出来，并且重启常规制冷系统以冷却这些危险的高热燃料。

youdao

Without upgrades to the newer systems, nuclear plants seeking licenses to operate past* their original shut-down dates, such as Vermont Yankee, would be depending on the technologies of yesterday.

较早的美国核电站，如佛蒙特扬基电站，并没有装备此项技术，这些未经更新换代的设施能否获得许可延长服役期限，将取决于建造时的技术水平。

youdao

The earthquake and tsunami damaged cooling systems at all six nuclear reactors there.

VOA: special.2011.05.24

The ceiling on warheads is 6,000 and the ceiling on strategic nuclear delivery systems is 1,600,".

VOA: standard.2009.04.08

"The new treaty that the U.S.and Russia are now negotiating would drop these levels even lower to somewhere between 1,500 and 1,675 deployed strategic warheads and somewhere probably below 800 strategic nuclear delivery systems,"

VOA: standard.2009.12.07

Strategic nuclear systems comprise a mere 13 per cent of the overall defense budget.

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The law stipulates that these tests can only be conducted for certain purposes, namely, to improve the safety of certain deployed nuclear weapon systems.

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In the negotiating end-game on START II, however, the United States agreed to such inspections in connection with new limitations governing the accountability of long-range bombers as nuclear delivery systems.

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