The third major indirect cost of soil erosion is the loss of navigability.

土壤侵蚀第三个重要的间接代价是丧失航行能力。

The cleanup operation helped ensure the water quality of the dam and its navigability.

清理工作有助于确保大坝的水质及顺利巡航。

Consistency, screen layout, relationships and navigability are important concepts of organization.

一致性，页面布局，模块关系和页面导航是组织中的重要概念。

With the compact Scooba 230, we focused on reducing size without compromising effectiveness and navigability.

利用小型Scooba 230机器人，我们致力于减小尺寸，但不影响其效能和适航性。

These actions indicate the multiplicity of the source and target types as well as the navigability from the source object, either bidirectional or unidirectional.

这些操作表明了来源及目标类型的多样性，以及资源对象的导航性，或者双向，或者单向。