Business objects are the primary mechanism for representing business entities, enabling everything from a simple basic object with scalar properties to a large complex hierarchy or graph of objects.

业务对象是用于表示业务实体的主要机制，支持从具有标量属性的简单基本对象到大型复杂层次结构或对象图的任何实体。

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The spatial table has a simple structure: a unique, integer column (objectid), one or more columns making up the primary key (copied from the source table), plus a single point-geometry column.

空间表的结构很简单：一个惟一的整数列(objectid)，组成主键的一个或多个列(从源表复制的)，以及一个点几何列。

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Fixed or adjustable gas orifice, primary air shutter and mounting boss. Heavy cast iron construction. Simple to install and to maintain.

固定的或可调的燃气孔板，主空气调节挡板，重铸铁结构，容易安装和维护都是该产品的特点。

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Dr. EDENBURG: So, even simple, in our eyes, simple diseases like diarrhea which you can treat quite easily, or simple malaria, yet children can die of it because there is a lack of primary healthcare.

NPR: Congo Violence Creates Medical Crisis