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发表于 2011-3-20 06:07:54
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CNN宣称抢救反应堆的行动今天获得重大进展。1、2、3号堆正在不间断浇水中。
[1:53 a.m. ET Saturday, 2:53 p.m. Saturday in Tokyo] Tokyo's fire department is spraying seawater in and around the Fukushima Daiichi nuclear power plant's No. 3 unit using a self-operating, long-running new system, authorities said Saturday.
The unmanned system, which began working for the first time around 2 p.m. Saturday, can spray seawater for up to seven hours at a time to aid the ongoing effort to cool the reactor's spent nuclear pool.
Previously, firefighters, soldiers and power company workers have made several missions - in abbreviated intervals to guard against individuals' prolonged exposure to radiation - for this same purpose.
[1:10 a.m. ET Saturday, 2:10 p.m. Saturday in Tokyo] Workers have drilled three holes apiece in the ceilings of the Nos. 5 and 6 nuclear reactors at the embattled Fukushima Daiichi power plant in order to alleviate pressure, a Tokyo Electric Power Co. official said.
This was done to release hydrogen gas and steam, whose buildup contributed to explosions at the plants Nos. 1, 2 and 3 units. Experts say the emission of hydrogen gas may be an indication of a partial nuclear meltdown, which may happen when nuclear fuel rods inside are not fully covered by water.
There have been no such explosions at the plant's Nos. 5 and 6 units.
Japanese authorities have said that a diesel generator is now powering a cooling system for those two reactors.
[10:38 p.m. ET Friday, 11:38 a.m. Saturday in Tokyo] Workers have finished laying electrical cable near the Fukushima Daiichi power plant's No. 2 nuclear reactor, the Tokyo Electric Power Company says.
This is part of an effort to restore power to the stricken reactors, which have largely been without electricity needed for their cooling systems. Company officials earlier said that an annex building near the No. 2 reactor will be a hub for the new electrical system.
Earlier Saturday, Japan's Nuclear and Industrial Safety Agency said that Tokyo Electric hoped to fully restore power to the cooling systems of the plant's Nos. 1, 2, 5 and 6 reactors later in the day. |
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