English to Chinese Tech/Engineering Patents

DISCLOSURE OF INVENTION
A pet door is disclosed to be installed in a residence door of a pet owner so as to overcome the disadvantages of known pet doors. That pet door includes a subframe assembly that is attached or otherwise fixed to the residence door and defines a passageway through which pets can leave and return to the pet owner’s residence. In some embodiments, decorative frames may be attached to subframe assembly that is fixed to the residence door. These decorative frames may be attached to the frame portion inside or outside the residence.

所披露的一种宠物门要安装在宠物主人住所的门上，使其能克服已知宠物门的缺点。该宠物门有一个辅助门框总成，它附着在或固定在住所的门上，并形成供宠物进出主人住所的通道。在该发明的某些实例中，装饰框可以附加到固定在住所门上的宠物门辅助门框总成上。

总觉得“总成”这个说法很奇怪，有没有更好的说法？