extraneousadj.外来的；无关的extraneous regressor额外回归自变量,额外回归因子extraneous component外加组分,额外分量extraneous prestress体外预应力extraneous estimates外来估计数extraneous estimator额外估计量extraneous modulatio寄生调制extraneous nucleotide外源核苷酸extraneous agent test体外试验extraneous modulation寄生调制extraneous information额外信息