relief ratio meaning in English

地形起伏比
硫高宽比
起伏率

The section is responsible for the provision of management consultancy studies and statistical surveys . the management services unit completed five major reviews during the year on staffing of the supplies section , transport support for the district cleansing section , manual gully cleansing , manpower for the district cleansing section of central district , and the relief ratio for refuse collection vehicles
年内，管理参议小组完成五项主要研究，研究内容包括物料供应组的人手编制分区洁净组的运输支援人手清渠工作中区环境?生办事处洁净组的人手检讨，以及垃圾收集车的备用数目比率。
The section is responsible for the provision of management consultancy studies and statistical surveys . the management services unit completed five major reviews during the year on staffing of the supplies section , transport support for the district cleansing section , manual gully cleansing , manpower for the district cleansing section of central district , and the relief ratio for refuse collection vehicles
年内，管理参议小组完成五项主要研究，研究内容包括物料供应组的人手编制、分区洁净组的运输支援、人手清渠工作、中区环境?生办事处洁净组的人手检讨，以及垃圾收集车的备用数目比率。