The underlying mechanisms responsible for photodarkening in ytterbium d.
讨论了掺镱光纤得光暗化效应得潜在机理及抑制方法。
photodarkening effect.
光暗化效应
THE FISHING GROUND OF NOTOTODARUS SLOANII AND ITS CATCH DISTRIBUTION AROUND NEW ZEALAND WATERS
新西兰周围海域双柔鱼渔场及其渔获分布
If changing fishing method, Todaropsis eblanae would become an economic species in South China Sea.
若改变捕捞方法，该种将成为南海捕捞头足类的经济种。
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