1、A certainty basic foundation for precision determine the cannon ostium velocity are offered.
從而為精確測定炮口速度提供了一定的理論基礎(chǔ)。

2、If the ostium of sinus were traumatized, it might become an etiologic factor of chronic sinusitis.
若傷口波及鼻竇開口，將導(dǎo)致慢性鼻竇炎的形成。

3、There is high percentage of cases with accurate position of stent in ostium confirmed by IVUS.
經(jīng)過IVUS檢查證實(shí)大部分支架在冠狀動脈口部病變處能準(zhǔn)確置入。

ostium翻譯