例句：

　　Our collagen is porcine collagen comes from Dayi zoology hoggery.

　　我們的膠原蛋白來(lái)自大邑生態(tài)養殖區的豬。

　　Decellularized porcine heart valves were prepared by using Trypsin-ethylenediamine tetraacetic acid and DNase.

　　利用胰酶-乙二胺四乙酸、核酸酶處理豬心瓣膜制備脫細胞支架。

　　This research intended to construct a eukaryotic expression vector with a site-directed mutation of porcine MSTN propeptide gene.

　　本研究旨在構建具有豬 MSTN 前肽基因定點(diǎn)突變的真核表達載體。