故障现象的英文：
fault symptom

fault是什么意思：
n. 缺点；毛病；故障；过错；发球失误；断层
v. 挑剔；弄错；产生断层

Justifying a fault doubles it
护短是加倍的错误

Every man has some fault.
人孰无过。

The mineralization is localized by faulting and shearing
矿化受断层和剪切带的控制。

But you cannot fault the logic.
但你不能弄错逻辑。

No fault can be attributed to him.
不能把错误归咎于他。

symptom是什么意思：
n. 症状；征兆

withdrawal symptoms
ph.1. 戒毒过程中产生的病症(诸如盗汗、恶心等等)

Look out for symptoms of depression.
留心看有无抑郁症状。

What are the symptoms to look out for?
有哪些症状需要注意？

Because symptoms are nonspecific, they are often ignored.
因为症候不止一种病因，所以经常被忽略。

a sign; an omen; a portent; an augury; a symptom
征兆