变换: vary; alternate; commutation ...领先: be in the lead; lead步: pace; step空中变换领先: flying change of lead领先步: lead换领: to replace a collar renewed collar领先: be in the lead; (take the) lead 开始就领先 have a good start; 遥遥领先 hold a safe lead; 以七分领先 lead by seven points; 在赛跑中领先 have the lead in a race; 在石油生产方面领先 lead in oil production; 领先十英尺 have a lead of ten feet; 现在他们在制造大规模杀人武器方面领先。 now they lead in the manufacture of weapons of mass destruction.; 领先角 angle of lead; 领先指标 leading indicator换领;续期: renewal补领;补发;换领;取代: replacement需要更换领导: require a change of leaders带头,领先: take the lead领先,岁差: precession movement领先的: foremost; leading; one-up领先角: angle of lead领先相: leading phase领先性: primacy领先于: lose领先者: front ru er; front runner; frontrunner; leader; pacemaker; pioneer使……领先: put ** in the lead; put sb in the lead为首,领先: take the lead变换: vary; alternate; commutation; alternation; conversion; reforming; [数学] transformation 变换手法 vary one's tactics; change tactics; resort to different tactics; 变换位置 shift one's position; 变换参数 transformation parameter; 变换齿轮 change gear; 变换方程 transformation equation; 变换函数 transfer function; 变换开关 [自动化] alteration switch取代护照;换领护照: replacement passport领先的人, 竞争领先着: front-runner比分领先: to outscore成本领先: overall cost leadership