词汇 | rod |
释义 | rod noun[ C ] uk /rɒd/ us /rɑːd/ rodnoun[C] (POLE)a long, thin pole made of wood or metal: 竿,杆,棒 He was given a fishing rod for his birthday.他得到一根钓鱼竿作为生日礼物。 The concrete is strengthened with steel rods.混凝土内加入钢筋变得更加牢固。 Poles, rods, shafts and sticks bar bargepole baton billy club boathook bollard cane lathi-charge lightning conductor litter grabber litter pick litter picker pointer shaft stake telephone pole tent pole totem pole trash grabber trash picker rodnoun[C] (IN EYE)anatomy specialized a type of cell in the retina (= part at the back of the eye) that helps you to see when there is not much light视杆细胞 Compare conenoun(IN EYE) Idiommake a rod for your own back rod | American Dictionaryrod noun[ C ] us/rɑd/ a long, thin pole made of wood, metal, or other material: a fishing/curtain rod Examples of rodrod For nocturnal or deep-sea animals, the sensitivity afforded by achromatic rod vision may outweigh the benefits of cone-based color constancy. Thus, we can conclude with confidence that rod cells do not contain a circadian oscillator. Synaptic transmission mediated by internal calcium stores in rod photoreceptors. The regulatory elements are able to direct expression to a subpopulation of cones while excluding expression in rods and non-photoreceptor retinal cells. Increase in retinal area, density of rod nuclei, and densities of rod inner and outer segments were also studied in these and additional species. Furthermore, two different patterns of distribution of rod precursors were distinguished. Topography of cones and rods in the tree shrew retina. The high density of rods (104,100 cells/mm2) with elongated outer segments (up to 30.5 6 2.9 m in length) indicates a light-sensitive retina. It may arise from melanopsin-generated input and 0or melanopsin-derived signals modified by rods and 0or cones. Characterization of the rod photoresponse isolated from the dark-adapted primate retina. This feedback has been shown to occur primarily at the axon terminals of rat rod bipolar cells. The rate of increase of ellipsoid volume, and therefore mitochondrial volume, with increased eccentricity, was much more dramatic in cones than in rods. In summary, we have quantified the difference between rods and cones in their mitochondrial content. There is similar agreement for comparisons of spectra based on rod signals for dog and ferret. A visual pigment expressed in both rod and cone photoreceptors. See all examples of rod 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. |
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