三: three阶: steps; stairs矩: carpenter's square; square r ...量: measure capacity三阶矩: third moment二阶矩量: second moment高阶矩量: high-order moment四阶矩量: fourth moment一阶矩量: first moment矩量: moment matrix三阶: mihashi; mikai; mishina; sangai; sankai; trvalent矩量法: method of moments; moment method; moment of method; moments methodk阶矩: k th moment二阶矩: second moment; secondary moment; secondarymoment阶矩阵: n-matrix零阶矩: zeroth moment一阶矩: first moment三阶节: sangai bushi三阶堂: sankaido三阶梯: three stecare大积矩量: major product moment矩量矩阵: moment amatrix; moment matrix矩量母函数: moment generating function; moment-generating function矩量问题: moment problem二阶矩范数: second moment norm