前: front运算: operation; arithmetic; opera ...阶段: stage; phase; period; gradat ...前运思阶段又称“前运算阶段”: preoperational stage具体运算阶段: concrete operational stage; stage of autonomy vs stage of concrete operation; stage of concrete operation命题运算阶段: propositional operational stage形式运算阶段: stage of formal operation; theory of cognitive development#formal operational stage具体运算阶段 具体运思期: concrete operational stage形式运算阶段形式运思期: formal operational stage具体运思阶段又称“具体运算阶段”。: concrete operational stage形式运思阶段又称“形式运算阶段”。: formal operational stage当前运算符: active operator; co / no current operator / next operator前运算思考: preoperation thought前运思阶段: preoperational stage运算和维护阶段: operation and maintenance phase前运演: pre-operation产前运动课: class in prenatal exercises前运思期: preoperational stage收缩前运动: systolic anterior motion向前运动: travel forward向前运行: precession; roll forward运算: [数学] operation; arithmetic; operating 四则运算 the four fundamental operations of arithmetic; 每秒钟运算一千万次 capable of 10,000,000 calculations per second; 运算器 arithmetic unit; arithmetic device; arithmetical unit; arithmetic-logic unit; logic unit; logic-arithmetic unit阶段: stage; phase; period; gradation; bench 分阶段 by stages; in stages; 分阶段撤军 phased troop withdrawal; 过渡阶段 transitional stage; 历史阶段 historical period; 初 [中; 高]级阶段 the junior [middle; senior] stage; 它还处于萌芽阶段。 it is still in an embryonic stage. 这个提案还没有通过讨论阶段。 the proposal has not yet passed the discussion stage.; 阶段发育 [生物学] phasic development; 阶段分析 phase analysis当前运行模式: pmo present mode of operation旋进(进动),向前运动: prece ion; precession