英语词汇“first fresnel zone”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	first fresnel zone
释义	first Fresnel zone first Fresnel zone [¦fərst frə′nel ‚zōn] (electromagnetism) Circular portion of a wavefront transverse to the line between an emitter and a more distant point, where the resultant disturbance is being observed, whose center is the intersection of the front with the direct ray, and whose radius is such that the shortest path from the emitter through the periphery to the receiving point is one-half wavelength longer than the direct ray.
随便看	cerebral hemorrage cerebral hemorrhage cerebral hemorrhage and nxy treatment cerebral hemorrhage, traumatic cerebral hernia cerebral herniation cerebral hyperesthesia cerebral hypoxia cerebral hæmorrhage cerebral impulse relay cerebral index cerebral infarct cerebral infarction cerebral insufficiency cerebral ischaemia cerebral ischaemic accidents due to atherosclerosis cerebral ischemia cerebralism cerebralist cerebral laceration cerebral lacuna cerebral layer of retina cerebral leukomalacia cerebral lipidosis cerebral lobes

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first Fresnel zone