Polarity is inherent in a magnet.

A piece of glass is laid on top of the magnet.

一块玻璃被搁在那磁铁的上面.

A clean and dry set of BDU's is a magnet for mud and rain.

乾净的野战制服是招引泥浆与雨水的磁石.

Certain metals are attracted to a magnet.

某些金属受磁石的吸引.

A magnet attracts both iron and steel.

磁铁吸铁也吸钢.

As a normal material magnet can make force with iron.

一种常态的磁体可以和铁产生力量.

Fast installation, no magnet switch.

安装方便、快捷 、 不再需要磁开关.

Afterwards, the Lua interpreter needs to obtain bytecodes to execute.

之后, lua解释器需要获取字节码以执行脚本.

This allows applications to customize the library functions available to Lua applications.

这使得应用程序可以为lua程序自定义库的可用功能.

Lua's module decomposition helps Lua address its quality and functionality requirements.

Lua模块划分帮助lua确定其质量和功能需求.

Figure 1 : process of initializing Lua and loading a script file.

图1:lua初始化与加载脚本的过程.

Next, the application needs to register libraries available to Lua programs.

接下来, 应用程序需要注册可用的库到lua程序中.

Figure 4 : Example of a Lua table internal organization.

图4:lua表内部组成的示例.

Lua also uses several utility modules to meet its requirements.

lua也使用一些工具模块以满足需求.

The Lua parser uses only one-pass to maximize performance.

lua语法分析器使用一次遍历以最大化性能.

Among Lua's data types are tables and userdata.

Table和userdate是 lua数据类型之一.

This mechanism is transparent to other Lua modules.

这种方法对lua其他模块完全透明.

Thanks to Lua's flexibility, several individual libraries add functionality to Lua.

得益于Lua的灵活性, 几个独立的库为Lua添加 了许多功能.

One important design consideration is Lua's ability to classify and represent data.

设计考虑中很重视lua分类和表示数据的能力.

The virtual machine helps Lua achieve its performance requirements.

虚拟机帮助lua达到性能方面的需求.

Television news images showed large crowds gathering outside the UCLA Medical Center.

电视新闻的画面上,成群结队的人汇集在UCLA医疗中心的门口.