sample passer造句

Principle based on a resonant ( vibrating ) glass cell which changes its frequency of vibration as a function of the density of the liquid sample passing through.
The study was marred by concerns that mtDNA sequences from the archeological samples represented severely damaged or contaminated DNA; however, subsequent investigation showed that the samples passed the most stringent tests of DNA degradation available.
It's difficult to find sample passer in a sentence. 用sample passer造句挺难的