English translation for "period of concrete operations"

具体运思期

Similar Words：

"period of communicability" English translation, "period of commutation" English translation, "period of compensation" English translation, "period of complete rotation" English translation, "period of concentration" English translation, "period of construction" English translation, "period of contact" English translation, "period of container leasing" English translation, "period of contract" English translation, "period of contraction" English translation