单词	含匿
释义	同CONCEAL
随便看	random observation random observing error random occurrence random optical access random order random-ordered sample random organizational method random orientation random--orientation random orthogonal series random orthogonal transformation random oscillation analysis random pack random packet length random packing random pairs method random paralleling random parameter system random path random pattern random permutation random permutation table random permuted block design random perturbation random-perturbation optimization