For example, a system designer is interested in the logical and physical aspects of a system, so the most useful forms are class and sequence diagrams rather than use-case and activity diagrams.
例如，系统设计人员对系统的逻辑和物理方面感兴趣，因此最有用的形式就是类和序列关系图，而不是用例和活动关系图。
From the plane sequence, the designer either tends to abstract succinct order composition or tend to abstract the dynamic equalization the constitution principle.
从平面形式层面上来说，设计师或趋向于抽象秩序的简洁构图；或趋向于动态均衡的构成法则。
The designer will not feel difficult to calculate the tank, will not flinch, will not randomly use some formulate. The design can be advanced in proper sequence.
设计者不会对蓄冰槽的计算望而却步，不会不着边际地套用一些公式，设计有章可循。
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