各分部分项工程施工先后关系的翻译：Part of the construction sequence 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Sub-part of the project construction has the relationship between

Part of the construction sequence

Various branches sub-item project construction relates successively

Some of the items in the various works in relationships

Part of the construction sequence