The wire 6 is run from the arc-shaped cut groove 13 towards the machining range 15 of a blade formation portion for forming a draw-out groove 18 as far deep as close to the bottom of a recess by running the wire to the center portion of the width of the range 15. The wire 6 is...
The phase transformation which occurs during the sintering involves the formation of feathers. These feathers, constituted by two adjacent alphas grains, can be described as mechanical twins. Three different twinning laws have been observed. To check the influence of the external pressure on the ...
句子:The Mad Hatter had a feather in his hat. 翻译:疯帽子匠的帽子上有一根羽毛。 出处:《小王子》 句子:The little prince looked at the sky, where some white birds were flying in formation, like a feather duster. 翻译:小王子看着天空,那里有一群白鸟排成队形飞翔,就像一把羽毛掸子。
Branch, Spur, and Feather Formation in Spiral Galaxies DOI: 10.1086/377578 S. Chakrabarti,G. Laughlin,F. H. Shu Full-Text Cite this paper Add to My Lib Abstract: We use hydrodynamical simulations to investigate the response of geometrically thin, self-gravitating, singular isothermal disks of...
lineages originate has yet to be found. The earliest fossil bird known to be ancestral to the lineage of modern birds isArchaeornithura meemannae. The species was described in 2015 after having been found in rocks of the Huajiying Formation of northeasternChinathat date to 130.7 million years...
which play a major role in the formation of the supporting surfaces of the wings; the rectrices, which form the tail; and the covert feathers, which cover the trunk of the bird and a substantial part of the wings. In most birds the covert feathers do not entirely cover the bird’s bod...
The many different types of feathers are variously specialized for insulation, flight, formation of body contours, display, and sensory reception. 1 of 2 Learn about the feathered dinosaurs of the Middle Jurassic EpochExcavating fossils of feathered dinosaurs from the Middle Jurassic Epoch.(more)See...
Isolation, identification, and characterization of a feather-degrading bacterium.Local inhibitory action of BMPs and their relationships with activators in feather formation: Implications for periodic patterning同义词 plume fledge 同根词 feathery featherless feathering feathered feather f开头的单词 fuzzy ...
Our observation ofshhexpression in the feather bud of the FFF region revealed that its expression in the FFF region has a non-radial but bilateral pattern at E14 and E15. This suggests that there is the second generation of feather formation, the morphology of which is different from that of...
2.Introduction is given to the formation of and hazard fromfuzzy yarn.详细分析了成纱毛羽的形态、成因及危害,提出减少毛羽的几项具体技术措施。 3.Through comparison of the speed variance of spindles Novibra and the conventional spindles on the frames K44,frames of compact spinning and conventional sp...