So we must estimate the LCC (Life Cycle cost) of artillery equipments with scientific methods, so that we can improve the efficiency of the acquisition and using cost.

因此，必须科学地估算炮兵武器装备的寿命周期费用，以提高武器装备采办效率和经费使用效益。

youdao

Theses switchgear assembly can greatly improve the operation reliability of power grid, gradually lower down the life cycle cost, step up the labor efficiency of power supply enterprise.

这些开关装置可以大幅度提高电网的运行可靠性，逐步减低设备的寿命周期成本，提升供电企业的劳动效率。

youdao