查询词典 pressure valve

Causes: malnutrition due to pregnancy, fetal calcium deficiency, resulting in weak laryngeal cartilage, inspiratory pressure increases, so epiglottis crimp contacts on both sides of the edge inward, or too large epiglottis and soft, two aryepiglottic fold side close to each other, narrowing into a cavity valve-like tremors occur ming throat.

发病原因：可由于妊娠期营养不良，胎儿缺钙，致使喉软骨软弱，吸气时负压增大，使会厌软骨两侧边缘向内卷曲接触，或会厌软骨过大而柔软，两侧杓会厌襞互相接近，喉腔变窄成活瓣状震颤而发生喉鸣。

OBJECTIVE In order to reduce the damage of negative pressure from cardiotomy suction on red blood cell and endocardium during extracorporeal circulation, we developed a cardiotomy suction relief valve and applied clinically.

作者：乔建民，高立兵，王委三目的为了减轻体外循环心内吸引力过大，所产生的负压对红细胞和心内膜的破坏，将研制的一种心内吸引减压阀我们在临床试用。

Application of cardiotomy suction relief valve reduces the negative pressure of cardiotomy suction, consequently prevents endocardium and red blood cell from hematoclasis and endocardium damage.

心内吸引减压阀可减小体外循环心内吸引管内的负压，减轻红细胞破坏和心内膜伤害，有保护心内膜以及红细胞的作用。

With the reasonable hypotheses to the configuration of the desuperheater and pressure reducer, the mathematical models about the decompression valve and the throttling disk were established.

通过对喷水减温减压器结构的合理简化，建立了减压阀和节流孔板的数学模型。

Effects of partial detonable mixture filling proportion on detonation wave pressure properties of kerosene/air pneumatic-valve pulse detonation engine were investigated. A preliminary analysis of a series of wave's reciprocity was carried out.

研究了不同部分充填比例对煤油／空气气动阀式脉冲爆震发动机的爆震波压力特性影响，初步分析了部分充填的爆震管内一系列波相互作用的机理。

Experimental results show that with given double swirl and direct pneumatic-valve and detonation tube structure, the decrease of partial detonable mixture filling proportion causes a little decrease of the peak value of detonation waves' pressure ,but impulse per unit volume of detonable mixture increases linearly.

研究结果表明，在气动阀选定、爆震管长度和爆震管内部结构一定条件下，随着脉冲爆震发动机可爆混气充填爆震管比例的降低，虽然爆震波压力峰值略有下降，但是，单位体积可爆混气获得的冲量线性增加，提高了脉冲爆震发动机的工作性能。

The invention also relates to a nozzle body (31) comprising a nozzle outlet which is disposed on the combustion chamber side end thereof, a nozzle needle (33) which is arranged in an axially displaceable manner and/or which can is actuated in a longitudinal recess (32) of the nozzle body (31); a throttle disk (25) which is arranged between the nozzle body (31) and the control valve (20) and which is closed on the rear end (oriented away from the nozzle outlet) of the longitudinal recess (32). Said throttle disk forms an opening stop for the nozzle needle (33) which co-operates with the rear front surface (orientated away from the nozzle outlet) of the nozzle needle (33) and defines the opening stroke of the nozzle needle (33), and a control chamber (45) formed between the rear nozzle needle front surface and the throttle disk (25), said control chamber being hydraulically connected to a pressure connection (29) which is used to supply fuel.

还设置了：一个喷嘴体(31)，在该喷嘴体的燃烧室侧的端部上构成一个喷嘴出口；一个喷嘴针(33)，该喷嘴针在轴向上可运动或可操作地安置在该喷嘴体(31)的一个纵向开口(32)中；一个封闭该纵向开口(32)的后面的端部的、安置在喷嘴体(31)与控制阀(20)之间的节流盘(25)，该节流盘构成用于该喷嘴针(33)的一个打开止挡，在此与该喷嘴针(33)的后面的端面协同作用并由此限定该喷嘴针(33)的打开行程的边界；和一个在该后面的喷嘴针端面与该节流盘(25)之间构成的控制室(45)，该控制室与一个用于燃料输入的压力接口(29)处于液压连接中。

The first generation microthruster integrates a polyimide peristaltic pump with an electrostatically actuated valve, pressure sensors and a temperature sensor.

第一种微推进器集成了聚酰亚胺蠕动泵、静电主动阀、压力传感器和温度传感器。

Psychological expert points out, examinee parent will be ferial cannot to the top of one's bent the affliction of pour, anxious write network script while, also will accompany the complex mood express when taking an examination of come out, this became a kind effective " pressure-relief valve ".

心理专家指出，考生家长将平日无法尽情倾吐的苦恼、担忧写入网络文字的同时，也将陪考时的复杂情绪抒发了出来，这成了一种有效的&减压阀&。

RESULTS: A total of 45 eyes from 45 patients were treated with the Ahmed glaucoma valve implant and its combination surgery. At a mean follow up of 9.7 months (range3～18months), the mean intraocular pressure was reduced from 36.8±12.3mmHg before the implant surgery to 18.0±4.5mmHg at the last follow up after surgery. The success rate was 87%.The best postoperative corrected visual acuity improved 16 eyes(35%).Transient postoperative hypotony and shallow anterior chamber occurred in 20% of cases. The common postoperative complication in later was the formation of encapsulated bleb(13%).

结果：难治性青光眼45例（45眼）实行了Ahmed青光眼阀植入术或联合晶状体摘除、玻璃体切割、人工晶状体植入术等；术后平均观察(3～18)9.7mo；患者术前的平均眼压36.8±12.3mmHg，术后平均眼压18.0±4.5mmHg；手术成功率87%；术后最佳矫正视力提高16眼（35%），视力无变化21眼（47%），视力降低8眼（18%）；术后早期最常见的并发症是一过性浅前房及低眼压，发生率为20%，晚期最常见的并发症是滤过泡包裹，发生率是13%。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。