第二: second段: section; segment; part; para ...第二段退火: second stage annealing; secular distortion第二段原木: second log与第二段中的: dissatisfied with第二段的加速度: sustainer accel (g)第二段的时间(秒): sustainer duration (sec)第二段可以省略: the second paragraph can be omitted. ellipsis由文中第二段知: early age frequently curable二段: erduan; fcb2-a某些导弹在主助推烧完后有第二段推力发动机: sustainer motor二段法: two-phase method二段式: rounded binary form二段踢: double kick; doublekick; two stage kick二段体: binary form二段跳: ctrl二段干馏;二段碳化: two-stage carbonization第二: 1.(序数) second 第二把手 number two man; second in command2.(姓氏) a surname 第二彦 di'er yan; 第二版 the second edition; 第二产业 second [secondary] industry; 第二承运人 succeeding carriers; 第二宇宙速度 second cosmic velocity (物体具有每秒11.2公里的速度时, 就可以克服地心引力, 脱离地球, 也叫“脱离速度”); 第二战场 second front; 第二阵地 second position二段操作: two-stage operation二段抽样: sub sampling; subsampling二段传播: two steflow of communication; twosteflow of communicationn二段分层化: substratification二段浮选法: two stage flotation process二段浮穴: two stage flotation process二段关闭: two-step closure