单词	ill-conditioned matrix
释义	ill-conditioned matrix 病态矩阵
随便看	sigma-field strictly prior to τ sigma-finite sigma-finite measure sigma-finite measure space sigma-function sigma-group sigma-ideal sigma-locally finite family sigma-polynomial sigma-process sigma-regular subalgebra sigma-ring sigma-space sigma-topology sigma-weak topology sigmoid sigmoid curve sigmoid distribution sigmoid function sigmoid-shaped curve sign signal signal alphabet signal detection signal duration

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