light period length的意思|示意

With the increasing of the light period length, the growth rate and cell density rose gradually and exogenous phosphorus level declined rapidly in the water.

延长光照时间能加快微囊蓝细菌的生长速率和提高微囊蓝细菌的密度。

It brings up the method of calculating the length queue and evanesce time of queue, while the consideration to vehicles space length and followup car flow arriving in period of the red-light.

同时还提出了考虑排队时车辆空间长度以及后续车流到达情况下的红灯排队长度计算公式和车辆排队消散时间计算方法。