1·To help generate lift to keep midwater, the top of the tail extends farther back than the bottom, creating a slant along the back edge.
为了保持在水中不至于沉底，尾部的顶端比底端向后延伸，沿着后端形成一个斜面，产生提力。
2·Like humans, killer whales have colonized a range of different habitats across the globe, occupying every ocean basin on the planet, with an empire that extends from pole to pole.
像人类一样，虎鲸也在全球范围内开拓了一系列不同的栖息地，占据了地球上的每一个海洋流域，拥有一个从一极延伸到另一极的帝国。
3·It had been assumed that the ice extended westward from the Alaskan/Canadian mountains to the very edge of the continental shelf, the flat, submerged part of the continent that extends into the ocean.
人们过去曾猜测，冰山从阿拉斯加和加拿大山脉向西延伸到大陆架的最边缘，也就是大陆架扁平的、延伸到海洋中的水下大陆那部分。
4·The Blancan extends back into the Pliocene.
勃朗阶延伸回上新世。
5·The border extends to the river.
边界延伸到河边。
1·But in 64-bit systems, dates are expressed as signed 64-bit integers, which extends the usable range.
但是在64位的系统中，日期是使用有符号的64位整数表示的，这可以极大地扩充其可用范围。
2·But it's nice to know that the wonderful concept of single-CD-bootable systems extends to the fun-and-games sector, making it possible for even the oldest machines to access modern media.
但是了解下面这个概念是非常有用的：一个可以单张CD引导的系统可极大地扩充娱乐和游戏元素，哪怕最旧的机器也可以利用它来使用现代媒体。
3·DataNucleus extends the scope of JPOX to the application data management domain intent on supporting a wide range of datastores, APIs, services, as well as eventually providing data analysis tools.
DataNucleus将JPOX的范围扩充到应用数据管理领域，以支持更广泛的数据、APIs、服务，以及最终提供数据分析工具。
4·It extends and improves traditional routing algorithm by importing the conception of critical link to route LSP in MPLS network.
对传统的路由算法加以扩充、改进，将关键链路思想加入其中，并应用到MPLS网络的LSP路由当中。
5·G is said to be bipartite matching extendable (BM-extendable) if every matching m whose induced subgraph is a bipartite graph extends to a perfect matching of g.
称g是偶匹配可扩的，如果G中导出子图是偶图的匹配m都可以扩充为g的完美匹配。
1·A child class that extends an abstract class must implement all abstract methods in its parent or itself be declared abstract.
继承抽象类的子类必须实现在其父类或自身中声明为抽象的所有抽象方法。
2·A realization of the service, as described by a set of call flow diagrams, begins in the design model with a single stereotyped class that extends the right framework class.
服务的实现，如一组调用流图所描述的，在设计模型中从继承正确框架类的单个原型化的类开始。
3·You must subclass (that is, create a class that extends it) and create an instance of the child class.
必须创建子类(即，创建继承它的类)，并创建该子类的实例。
4·With mixins formulated as generic classes, we always have a handle on the parent class, the type parameter that the class extends.
将 mixin 明确表述为泛型类，我们就始终有父类的句柄，它是该类继承的类型参数。
5·We will need an implementation that extends org.apache.struts.action.Action for each of the actions identified in our state transition diagram and defined in struts-config.xml.
对于在状态转换图中标出的并在struts - config . xml中定义的每个操作，我们需要一个继承org . apache . struts . action . action的实现。