assignable cause

基本解釋

If the answer to question 2 is no, then you should look for the assignable cause instead of tinkering with the limits.
如果答案是否定的，那么第二個問題，你應(yīng)該找指定的原因而不是限制的。
It is noteworthy in this scenario that the original, thorough laboratory investigation failed to find any assignable cause.
值得注意的是此假想有一個前提，即在初始的完整化驗室調(diào)查中，并未發(fā)現(xiàn)任何可歸結(jié)原因。
zhuyujiao1972.blog.163.com
If the answer to question 4 is no, then you should again be looking for the assignable cause instead of tinkering with the limits.
如果答案是否定的，那么問題4你應(yīng)該再找轉(zhuǎn)讓原因而不是在極限。