任务被分成三种粒度。

There are also three levels of granularity for Tasks.

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羊毛脂是从绵羊毛中获得的天然原料，它有多种用途，其衍生物主要可分成三种。

Lanolin, a fat found naturally on sheep's wool, is a versatile material, its derivatives offering a host of benefits. These derivatives can be separated into three main groups.

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从广义角度来说，数据库管理系统(DBMS)在历史上划分成三种类型：层次、关系和面向对象。

In broad themes, database management systems (DBMSs) have historically been of three types: hierarchical, relational, and object-oriented.

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