查询词典 stenosis

Aortic stenosis is a heart defect that may be congenital or acquired.

主动脉狭窄是一种心脏病，可能是先天性的或者获得性的。

Over the years, I have taken dozens and dozens of elderly patients with aortic stenosis through aortic valve surgery usually with very good outcomes.

多年来，在我这就诊的有很多主动脉瓣狭窄的老年患者，他们行主动脉瓣置换术后的结果也很好。

Aortic stenosis is treated with repair of the obstructed valve.

主动脉狭窄是用修复梗阻的瓣膜来治疗的。

Over the past decades, echocardiography has become the clinical standard for the evaluation of aortic stenosis severity.

在过去的几十年，超声心动已经成为评价主动脉狭窄严重程度的标准。

Most children who have had an aortic stenosis surgical repair will live healthy lives.

绝大多数经过主动脉狭窄的外科修复的儿童将会过上健康的生活。

What is aortic stenosis?

什么是主动脉狭窄？

In aortic stenosis, calcium deposits narrow the aortic valve and impair the heart's ability to pump blood.

在主动脉狭窄病例中，钙质沉淀使得主动脉瓣膜狭窄，损害了心脏的供血能力。

Aortic stenosis is the inability of the aortic valve to open completely .

主动脉狭窄使得主动脉瓣不能够完全的开放。

It is important that you inform all medical personnel that your child has aortic stenosis so they may determine if antibiotics are necessary prior to the procedure.

重要的是你要告诉医务人员你的孩子患有主动脉狭窄，如此他们就能够决定在做这些治疗前是否有必要给与抗生素。

"Because of the possible risks associated with aortic valve replacement in the elderly, almost 60 percent of patients with symptoms related to aortic stenosis are not referred to surgery," says lead researcher James S.

&因为主动脉瓣膜置换在高龄患者中可能存在的风险的，几乎有60%的显示主动脉狭窄的征兆患者不能进行外科手术，&这项研究的负责人James S。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。