past service life的意思|示意

The service provides analytics about user's life and build forecasts based on past data.

这些服务还提供对用户的人生进行的分析统计，并且建立基于过去的数据的预测。

History always service for the life, it provides example of evaluation in the past, or put the present moment generating evolution.

历史总是为生活服务的，它提供范例，评价过去，或者把目前这个时刻安放在生成演变中去。

Russia has taken all kinds of measures in the past decade to modify and maintain them in hopes of extending their service life, but the old missiles will be unable to serve any more around 2020.

俄罗斯近十年来采取各种措施改造养护，希望延长这些战略导弹的使用寿命，但到2020年前后，老旧导弹将无法继续服役。

A new double-sealed PTFE packing, and sealing materials used in the past, compared to a longer service life, maintenance more convenient.

密封采用新型聚四氟乙烯双层填料，与以往使用的密封材料相比，使用寿命更长，维修更方便。