A three-tier structure, subsystem all encapsulated in DLL.

采用三层结构，子系统全部封装在DLL中。

youdao

Assisted by the cases of some major American research universities, the first part highlights the common feature of the three-tier structure of academic schools within a university.

第一部分以若干所美国知名大学内部学院和学科设置为例，论述综合性研究型大学中学院设置的三个层次的共同规律。

youdao

In the level of legal norms, civil enforcement procedures exist the three-tier structure for a balance between survival and claims.

在法律规范的层面，民事强制执行程序存在着平衡生存权与债权关系的三层结构。

youdao

Both Delta and US Airways have a three-tier redemption structure, offering seats at the basic level, a midtier level at around 40, 000 miles for a domestic coach ticket and a full-fare level for as many as 60, 000 miles for domestic coach round trips.

WSJ: Frequent-Flier Miles: Best Airlines for Cashing In