主动脉是大血管，当它将血液泵入较小的血管时，小血管可产生较高阻力。
And because the aorta is a big tube and its pumping blood out into smaller tubes, the smaller tubes are of course going to have higher resistance.
感染性心内膜炎：见主动脉瓣处有一大而不规则的红褐色赘生物。
This is infective endocarditis. The aortic valve demonstrates a large, irregular, reddish tan vegetation.
主动脉夹层，一种病情凶险、死亡率较高的急性大血管病变，已引起国内外学者对发病机制、诊断治疗的深入研究。
Aortic dissection is an acute process of large blood vessels characterized by dangerous pathogenic conditions and high fatality, which has attracted extensive study.
大而重的恐龙使用四节aa电池和球有四个腹主动脉瘤。
The big and heavy dino USES four AA batteries and the ball takes four AAAs.
大而重的恐龙使用四节aa电池和球有四个腹主动脉瘤。
The big and heavy dino USES four AA batteries and the ball takes four AAAs.
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