How do you keep these files

保存───preservation;文件───file

Introduction. Cavernosal oxygenation appears to be important for preservation of erectile tissue health.───海绵体氧疗在勃起组织的健康方面有重要意义.

The police are responsible for the preservation of law and order.───警察负责维持法律与秩序.

Objective : To value the virtues of mitral valve replacement with preservation of subvalvular apparatus.───目的: 评价保留瓣下结构的二尖瓣替换术的临床效果.

Wetland projects provide an opportunity to positively contribute to regional biodiversity and preservation of natural ecosystems.───湿地项目对区域生物多样性和自然生态系统的保护有积极的贡献.

The picture is in an excellent state of preservation.───这幅画保存得极为完好.

Preservation of mature countries reported by the competent tax authorities after the destruction of identification.───保存期满,报经主管国家税务机关查验后销毁.

Hobbes has ingeniously demonstrated an obligation, grounded solely in self preservation, to submit absolute sovereign.───霍布斯天才地论证了一种惟一立基于自我保全而服从于主权者的义务.

The central issue in the strike was the preservation of jobs.───罢工的核心问题是工作职位的保留。

The speediest succour might avail to the preservation of his life.