Once the marker is added to the map as an overlay, the drawLine function is called.
将这个标记作为叠加层添加到地图上之后，调用drawLine函数。
Spatial overlay is one of the most important spatial analysis functions in the Geographic Information System, and its efficiency will directly influence the whole function of GIS.
空间叠加是GIS系统必不可少的空间分析功能之一，空间叠加分析效率的高低直接影响到GIS整体功能的发挥。
Reflective crack is one of major damage that the old concrete pavement has after restored by adding asphalt overlay and affects directly function and service life of mad usage.
反射裂缝是旧水泥混凝土路面沥青加铺路面的主要病害之一，直接影响了路面的使用功能和使用寿命。
They are: parent, core resource unit, shared service unit, project unit, business unit, sub-business, business function and overlay unit.
这8个部门是：总部、核心资源部、共同服务部、项目部、业务部、次要业务部、业务职能部和覆盖部。
The overlay layer still owns the sterilization function after repetitive scrubbing.
上垫层反复洗涤仍具有灭茵作用。
The overlay layer still owns the sterilization function after repetitive scrubbing.
上垫层反复洗涤仍具有灭茵作用。
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