| 词汇 | valve |
| 释义 | valve noun[ C ] uk /vælv/ us /vælv/ a device that opens and closes to control the flow of liquids or gases, or a similar structure in the heart and the veins that controls the flow of blood: 阀;活门;（心脏或血管的）瓣膜 The valve failed to open/close.阀门打不开／关不上了。 It was a weak heart valve that caused her death.是心瓣膜问题导致了她的死亡。 part of a musical instrument such as a trumpet that changes the sound by controlling the flow of air（喇叭等乐器的）阀键，活塞 David Troncoso/Photodisc/GettyImages Engineering - mechanical -engined air-cooled artificer automative bionics drive shaft engage fan belt go on horsepower mechanical mechanize neutral oilcan override pneumatic stress test tick over tune (something) up unmechanized You can also find related words, phrases, and synonyms in the topics: Machines - general words The circulatory system & blood Machines - parts valve | American Dictionaryvalve noun[ C ] us/vælv/ a device that controls the flow of air or liquid from one place to another: a heart valve The explosion apparently was caused by a faulty gas valve. Examples of valvevalve In life the tellin would have had two valves, but only one is preserved here. The single valves are preserved in a fine-grained limestone. There was no neonate with regurgitation involving four valves. Bioprosthetic valves have a strong tendency to calcify in children. At this stage, the wider curved end of the baffle is brought down onto the remnant of the atrial septum between the atrioventricular valves. Abnormalities of the coronary circulation were not apparent grossly in the specimens with hypertrophied right ventricular myocardium and imperforate pulmonary valves. Five patients (63%) among those without carditis had abnormal findings of their mitral valves. Failures of prosthetic valves caused the largest number ofreinterventions. The arterial valves also have a complex anatomic arrangement involving interaction of the sinuses of the arterial trunks with the supporting ventricular structures. Fifty-five cases having acute lesions, and 38 of those with chronic lesions suffered involvement of all cardiac valves. Small vegetations were observed on both the atrioventricular and arterial valves. The duration of the regurgitant flow varied but in no valves did it occupy the whole systole or diastole. Eustachian valves were examined from the parasternal short axis, apical four-chamber, and subcostal sagittal and coronal views. The cylinders and the swing motor are activated by means of pressure and flow through the main valves. In general, the planner cannot solve flow goals that require two or more valves to be operated. See all examples of valve These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Collocations withvalvevalveThese are words often used in combination with valve. Click on a collocation to see more examples of it. aortic valve The aorticvalve, ascending aorta and the two brachiocephalic arteries were normally developed. bypass valve The reserve valve and bypass valve are also on the left. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. cardiac valve Fever was the presenting symptom in three patients, while the mass obstructed a cardiac valve in three others. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. See all collocations with valve |
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