第二: second变化: change; variety; transformat ...第二变分: second variation第二变量: second variable第二变分公式: second variation formula第二变速齿轮: second stud gear正定第二变分: positive definite second variation二变量: bivariate二变系: divalent system; divariant system二变量的: bivariate二变量相关: bivariate correlate; bivariate correlation二变量样本: bivariate sample二变项函子: bifunctor七十二变: countless changes of tactics; seventy-two metamorphoses双变 二变量: bivariate二变量散点图: bivariate scatter plot变化: 1.(事物在形态或本质上产生新的状况) change; variety; transformation; variation; varying; alleosis; variance; alteration; modification 化学变化 chemical change; 物理变化 physical change; 气温的变化 variations of temperature; fluctuations of temperature; 呈现形式上的无穷变化 take on an infinite variety of form; 昼夜变化 daily variations; 可能变化 be capable of variation; 随 ... 而变化 variation with ...; 富于变化的 be full of variety; 我家乡有了很大的变化。 great changes have taken place in my home village. 他的文体缺乏变化。 his writing lacks variety.2.(改变, 更改) change; vary 变化无常 constantly changing; changing all the time; 他发球变化多端。 he's always changing his way of serving. 英格兰的天气常常变化。 the weather often changes in england.; 变化范围 range of variation; excursion; span; 变化率 rate of change; slewing rate; 变化模 changing pattern; 变化区域 region of variation; domain of variation; 变化性 variability; 变化运动 allassotonic (指成熟植物器官的运动) 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二变量函数发生器: bivar bivariate function generator二变量正态总体: bivariate normal population二变量指数密度函数: bivariate exponential desity functions变化;变量;变化量: variation第二;第二点: second变化101: thermodynamics polytropic process internal energy change变化、发展: change develop