[Papers]NSE, $u_3$, Lebesgue space [NNP, QM, 2002; Zhou, JMPA, 2005] $$ex u_3in L^p(0,T;L^q(bR^3)),quad frac{2}{p}+frac{3}{q}=frac{1}{2},quad 6< qleq infty. eex$$