地理标记语言（GML）是符合ISO 19118的XML编码，用于 根据概念建模进行建模的地理信息的传输和存储 ISO 19100系列国际标准中使用的框架，包括空间和 地理特征的非空间属性。购买本文件时可获得的所有当前修订均包含在购买本文件中。

The Geography Markup Language (GML) is an XML encoding in accordance with ISO 19118 for the transport and storage of geographic information modelled in accordance with the conceptual modelling framework used in the ISO 19100 series of International Standards and including both the spatial and non-spatial properties of geographic features.All current amendments available at time of purchase are included with the purchase of this document.