... 可侦检数量 detectable amount 可侦检污染 detectable contamination 可侦检动量 detectable monentum ...
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High levels of cesium 134 and 137 were confirmed at the point of the leak roughly 300 yards from the ocean, but no detectable amounts of radioactive contamination have been found in the sea water.
WSJ: New Leak at Japan Reactor Threatens Ocean
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