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biserial correlation
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用来表示一个正态分布的变量和一个二值变量间的相关,其中二值变量是由一个潜在的正态分布变量通过某个阈值划分而成。
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rare earth magnetic materials
rare earth metal
rare-earth metal
rare-earth metal catalyst
rare earth metal ore deposit
rare earth metal refining
rare earth metals metallurgy
rare earth molten salt electrolysis
rare earth molten salt electrolysis in chlorides
rare earth molten salt electrolysis in fluorides
rare earth nitrate
rare earth oxalate
rare earth oxidation-reduction separation and purification
rare earth oxide
rare earth oxides
rare earth oxides lanthanum thermal reduction
rare earth perchlorate
rare-earth permanent magnet
rare earth permanent magnetic material
rare earth permanent magnetic materials
rare earth permanent magnetic material with low temperature coefficient
rare earth phosphate
rare earth pyrometallurgy
rare-earths-cobalt perma-nent magnetic material
rare earth-sensitized luminescence materials
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