accidence例句

This text surrounds that problem, makes some accidence and system discussion.
本文围绕该问题作了一些初步的、系统的认识和探讨.

I have learnt some knowledge of it in accidence.
我初步学会了关于它的一些知识.

Medical factors cause the accidence of MOF also.
医源性因素也参与MOF的发生.