1. 明白的：indisputability 无争辩的余地 | indisputable 明白的 | indisputably 无争论余地地

2. 无可争辩的：旁热式电子管 indirectly heated tube | 无可争辩的 indisputable | 无可置疑的 indisputable

3. 无可置疑的：无可争辩的 indisputable | 无可置疑的 indisputable | 不清楚的 indistinctive

4. 无争论之余地的：无争论余地的incontrovertible | 无争论之余地的indisputable | 无争异的no-hassel

1. 无可争辩的;不容置疑的
If you say that something is indisputable, you are emphasizing that it is true and cannot be shown to be untrue.

e.g. It is indisputable that birds in the UK are harbouring this illness...
无可争辩的是,英国的鸟类携带着这种疾病的病菌。
e.g. The indisputable fact is that computers carry out logical operations.
不容置疑的事实是，电脑执行逻辑操作指令。

adj

1. impossible to doubt or dispute

e.g. indisputable (or sure) proof

Synonym: sure

2. not open to question
obviously true

e.g. undeniable guilt
indisputable evidence of a witness

Synonym: incontestableundisputable