| 1. | Land land , engineering and hydrographic survey services
土地工程及水道测量服务 |
| 2. | Land , engineering and hydrographic survey services public works category
土地工程及水道测量服务 |
| 3. | Automatic hydrographic survey system
水深测量自动化系统 |
| 4. | Concepts , abbreviations and symbols in surveying ; hydrographic surveying
测量学概念缩写和符号.水文测量 |
| 5. | Hydrographic surveying : determination of depth and topography of the sea bed
水文测量：测定海床深度及地形 |
| 6. | Specifications for hydrographic survey
海道测量规范 |
| 7. | This includes specialised vessels such as fire boats , police launches , airport rescue launches , pollution control launches , hydrographic survey launches and floating clinics
政府船队包括多种专用船只，例如灭火轮、水警轮、机场救援船、污染控制船、海道测量船和水上诊疗所。 |
| 8. | The marine department itself controls some 100 vessels which comprise mainly patrol launches , personnel carriers , pontoons , self - propelled barges and some specialised vessels such as hydrographic survey launches and explosives carriers
海事处本身所管辖的船只约100艘，主要为巡逻小轮、人员载运船、浮趸、自航趸船，以及海道测量船、爆炸品运载船等专船。 |
| 9. | The marine department itself controls about 100 vessels which consist of mainly patrol launches , personnel carriers , pontoons , self - propelled barges and some specialised vessels such as hydrographic survey launches and explosive carriers
海事处管辖的船约有100艘，主要包括巡逻小轮、运送人员的船、浮趸、自航趸船，以及海道测量船、爆炸品运载船等专船。 |
| 10. | The main purpose of seafloor surveying is to obtain digital sea charts , which are developed by means of mosaic technique under the constraints of hydrographic surveying principles . therefore , mosaic technique is of fundamental importance in surveying processes
该系统的最终成果体现就是得到符合海道测量规范的数字地理海图和三维地形图，可见拼图技术在整个系统中具有极其重要的地位。 |
