您要查找的是不是：
- Objective To investigate the diagnostic value of echocardiography in the permanence eustachian valve. 目的探讨超声心动图诊断永存下腔静脉瓣的价值。
- That oyster closed up its valves. 那个牡蛎把壳合拢起来。
- Eustachian valves [医] 下腔静脉瓣
- Having a shell consisting of two hinged valves. 双瓣壳的有由两个开合的瓣组成贝壳的
- The child has earache caused by blocked Eustachian tubes. 这孩子因耳咽管堵塞而引起耳痛。
- The Research of the Ultrasonic Diagnosis of Permanent Eustachian Valve Remnant 永存EUSTA CHIAN瓣的超声诊断探讨
- The patency of the eustachian tube is compromised. 咽鼓管的通畅被损害。
- Cars began using caps that incorporated two valves. 汽车开始使用装有两个阀门的油箱盖。
- Fill kill and choke valves with seawater. 将压井阀和阻流阀注满海水。
- A rod moved by a cam to operate the valves in an internal-combustion engine. 阀门挺杆通过凸轮转动的杆，用来操纵内燃机的阀门
- Streams are switched by solenoid valves. 流路靠电磁阀进行切换。
- The valves of the heart allow the blood to pass in one direction only. 心脏的瓣膜使血液只能朝一个方向流动。
- All needle valves must be closed on test kit. 检测组件上的所有针形阀必须关闭。
- No downstream shutoff valves are allowed. 不允许有下游关闭阀。
- The culprit is the inability of the Eustachian tube to open. 遇到这样的问题是由于咽鼓管不能打通引起的。
- Yes,but it's quite a job to treat these valves. 是的，但是处理这些阀门相当费事。
- Opening by valves,as the capsule of a lily or iris. 瓣裂的由荚分开的，例如百合花或蝴蝶花的荚膜
- The subscipt i refers to instantaneous valves. 脚注i指瞬时值。
- A large Eustachian valve is a confounder of contrast but not of color Doppler transesophageal echocardiography in detecting a right-to-left shunt across a patent foramen ovale 检测卵圆孔未闭右向左分流时,大的Eustachian瓣是经食管造影超声心动图的混淆因素,但不影响彩色多普勒经食管超声心动图
- Velan Small Forged Steel Check Valves. 锻造低温闸阀、截止阀和止回阀。
