The cost of this is at the moment unkown.

目前这种作法的代价还不得而知。

Photo 194: Unkown plant with beautiful leafs.

图194：不知名的植物，叶子长得层次分明，也算好看。

The singular integral equation for the unkown crack opening displacement is derived.

求出了以裂纹张开位移为未知量的奇异积分方程.

Function: Unkown, but it is the Pave Low helicopter made by Sikorsky, but what it does is up to guessing.

功能：未知的，但它是铺路低直升机西科斯基进展，但这种事无法猜测。

And the selective superior mesenteric angiography can be a routine diagnosis method to unkown gastrointestinal bleeding.

对诊断困难的消化道出血,选择性肠系膜上动脉造影可作为常规检查方法.