As Carol said, bats use it for navigation and orientation.
正如卡罗尔所说，蝙蝠用它来导航和定位。
The astrolabe had long been the primary instrument for navigation, having been introduced in the eleventh century.
自11世纪星盘被引入以来，它一直都是航海的重要工具。
Islanders from all over the Pacific learned to use the stars for navigation, and they passed this knowledge down from generation to generation.
来自太平洋各地的岛民学会了用星星来导航，并且他们将这一知识代代相传。
Actually, there are some species of bats, the ones that don't use echolocation that do rely on their vision for navigation, but it is true that for many bats, their vision is too weak to count on.
事实上，有一些品种的蝙蝠不使用回声定位，而是依靠视觉来导航，但对很多蝙蝠来说，它们的视觉太弱了，确实不能依靠。
Today, rivers are controlled for many reasons, primarily to maintain reliable water supplies for daily, agricultural and industrial needs, for power generation, for navigation, and to prevent flooding.
今天，河流控制的原因有很多，主要是为了维持可靠的水资源供应，以满足日常生活、农业和工业、发电、航行的用水需要，并起到防洪作用。
Metadata support for navigation nodes.
元数据支持导航节点。
In a limited way it can even be used for navigation.
在某种程度上，它甚至可用于导航。
The interface elements for navigation are shown in the image below.
下图显示了导航部分的界面元素。
Then they can use it for navigation and games, not necessarily songs.
他们可以用它来导航和玩游戏，音乐并不是必须的。
The sidebar features the functions for navigation, as well as your contacts.
侧边栏提供的是一些导航用的功能，以及你的联系人列表。
Modeler 6.1.2 provides a new option for navigation through multi-level processes.
Modeler6.1.2提供了一个用于导航多级流程的新选项。
This time around, I'll show you how to affect the lifeblood of any Web application: the URIs used for navigation.
这次，我将向您展示如何影响Web应用程序的命脉：用于导航的URI。
Messages on the hold queues are usually required for navigation of long-running business process instances to continue.
持有队列中的消息常常用于导航长时间运行的业务过程实例。
Likewise, most GUI designs rely on a mouse for navigation, which can be a barrier for people with motor and visual disabilities.
同样，大多数GUI设计依赖鼠标进行导航，对于运动和视力有残疾的人，这会成为障碍。
A consumer hierarchy that organizes products into categories that are then presented to customers on a Web site for navigation.
消费者层次结构，将产品组织成不同的类别，然后在网站上显示以供用户浏览。
Given that XPath and XQuery are already used within the XML database for navigation and query, these skills are likely already known.
鉴于XPath和XQuery已经用于在XML数据库中进行导航和查询，这些技术可能已经为程序员所熟悉。
Many designs use one font for headlines, one for body, and possibly one for navigation on websites or for any special text or subheadings.
许多设计使用一种字体作为标题，一种字体作为主体，或许还有一种字体作为网站的导航或是其它特殊的文字，还可能是副标题。
Most tutorials teach you just to use CSS Sprites for navigation, where I am going to say to use it for the entire user interface of your site.
许多教程只是教你如何使用CSS精灵制作导航，我要说的是使用它制作整个网站的用户界面。
Additionally, images are still not indexed directly by search engines, so using images for navigation is a search engine optimization (SEO) sin.
此外，图像仍然不能由搜索引擎直接索引，因此，使用图像进行导航不利于搜索引擎优化(search engine optimization, SEO)。
Using XPath for navigation makes the application code more understandable by illustrating the relationships in the business data being manipulated.
使用XPath进行导航可以明确指出操作的业务数据中的关系，使应用程序代码更容易理解。
To write effective bash shell scripts, you must master the basic bash command set for navigation and daily routine tasks performed within the shell.
要想编写有效的bashshell脚本，就必须掌握在shell中执行导航和日常任务的基本bash命令集。
Kuo discovered that compasses do not point true north but to the magnetic North Pole. This was a decisive step to make them useful for navigation.
沈括发现，指南针并不是真正的指向北方，而是指向地磁的北极，这对指南针用于导航走出了决定性的一步。
NIST physicist James Bergquist notes that the idea of using a constellation of satellites for navigation came up only after atomic clocks were developed.
NIST的物理学家JamesBergquist指出，原子钟出现后不久就有了利用卫星星座进行导航的思想。
Proponents said it would generate clean electricity and open up new swaths of the Yangtze for navigation by bigger boats while preventing lethal flooding.
支持者说，大坝将产生清洁电力，开通供大型船只航行的长江新航道，并能防范危害极大的洪灾。
Using XPath for navigation makes the application code more understandable by illustrating the relationships in the business data that are being manipulated.
通过使用XPath进行导航，可说明所操作数据之间的关系，从而提高应用程序代码的可读性。
Dictate that all pages maintain their content in one of four div elements: a div for the header, one for the footer, one for navigation, and one for content.
指明所有页面在下列四个div元素之一中维护其内容：一个div用于页眉，一个用于页脚，一个用于导航，一个用于内容。
We find ourselves resetting the browser default styles, setting up a baseline grid and writing CSS for navigation tabs over and over again-on almost every project.
我们发现自己在重复设置默认浏览样式表，设置一个布局基线，为了导航条目一次又一次的写css——几乎在所有的项目中。
We find ourselves resetting the browser default styles, setting up a baseline grid and writing CSS for navigation tabs over and over again-on almost every project.
我们发现自己在重复设置默认浏览样式表，设置一个布局基线，为了导航条目一次又一次的写css——几乎在所有的项目中。
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