期: designated time行期: date of departure 行期已近。 the date of departure is drawing near退行: back line feed; regression; retrogradation; retrogression进行期: active stage; progressive stage旅行期: journey duration生行期: growing period先行期: antephase移行期: migratory stage运行期: operating period; run time; runtime执行期: runtime调回, 退行: shunt back退行波: retrograde wave退行的: recessive; regressive; reversionary退行律: law of retrogression退行星: receding starc运行期库: gnu c library偿还期, 履行期: satisfied term非运行期: inoperative pariod; inoperative period航行期间: term of voyage急性进行期: acute progressive period进行期, 活动期: active stage进行期, 增进期: stadium incrementi履行期限: deadline for performance; time of performance盲目移行期: random wandering phase无错运行期: error-free running period