“polymetallic nodule”的概念、定义、翻译、参考文献-科学参考

单词	polymetallic nodule
释义	polymetallic nodule Encyclopedia 理学多金属矿产资源释 polymetallic nodule多金属结核分布于沉积速率较低（约10厘米/千年）的深海盆地中，一种富含铜、镍、钴和锰等有用元素的海底战略性矿产资源。又称铁锰结核、锰结核、锰矿球、锰矿团、锰瘤。
随便看	integral curve integral cyclic cohomology group integral density integral density of states integral dependence integral-differential equation integral-differential operator integral direct sum integral divisor integral domain integral drawing integral element integral element over R integral equation integral equation method integral equation Neumann series integral equation of convolution type integral equation of Fredholm type integral equation of Volterra type integral equation theory integral erection method integral exponent integral exponential function integral expression integral extension

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