Unknown-unknown的意思|示意

It is speculated that selenium may have some unknown neural function, but as of yet, its mode of action is unknown.

据推测，硒元素有未知的神经功能，然而目前这种功能的作用模式还是未知的。

We are facing an unknown purpose unknown quantity.

们常常是对着一个未知数而前进。

The location of an unknown point, as in navigation, by the formation of a triangle having the unknown point and two known points as the vertices.

三角测量通过以分别作（顶点）的两个已知点和一个未知点形成一个三角形，来求出或定位该未知点，如在航海中。

Setting all three options to 0 is acceptable; it can be treated as an unknown state (so there are four possible states: file, directory, special, and unknown).

将所有这三个选项设置为0是可行的；可以将它视为一个未知状态(于是有四种可能的状态：文件、目录、特殊和未知)。

Unknown-exit code 3-indicates a service is in unknown state.

UNKNOWN—退出代码3—表示服务处于未知状态。

The $2 trillion in lending is going to unknown places in exchange for unknown collateral.

这2万亿美元的贷款将去未知的地方以换取未知的抵押品。