地面维护 meaning in English

ground maintenance
ground servicing
ground support

Grounds maintenance - recommendations for the maintenance of water areas
地面维护.水域维护推荐
Helicopter flying and ground handling qualities ; general equipment for
直升机的飞行和地面维护质量.一般设备
Manually operated hydraulic shoring systems for groundwork support - product specifications
地面维护支撑用人工操纵液压支撑系统.产品规范
Manually operated hydraulic shoring systems for groundwork support - part 1 : product specifications
地面维护支撑用人工操纵液压支撑系统.产品规范
Manually operated hydraulic shoring systems for groundwork support - assessment by calculation or test
地面维护支撑用人工操纵液压支撑系统.计算或试验评定

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