英语语法分析

The control group had no bone marrow embolization.

对照组未见肺骨髓脂肪栓塞。

Embolization of fragments of tumor may also occur.

肿块的碎片也可能引发栓塞。

Objective To investigate the causes of cholecystitis after hepatic artery embolization.

目的探讨肝动脉栓塞后发生胆囊炎的原因。