最终,成行的浓密互连羽支形成了平滑表面:即现代鸟类的羽翮结构基本形成。
Eventually, dense rows of interlocking barbs formed a flat surface: the basic blueprint of the so-called pennaceous feathers of modern birds.
源自亚利桑那沉溺火的浓密烟羽正向东漂移,同时,在南部,一个模糊的马蹄拱型烟羽正在升腾。
A dense plume flows east from the Wallow Fire in Arizona, with a fainter plume rising from the Horseshoe 2 fire in the south.
哈勃望远镜新摄取的图像没有显示出那里有作为爆炸特征的黑羽碎片,如果确是对象爆炸,那么这些黑羽碎片是会出现的。
The new Hubble images show no dark debris plume, which would have been present if the object exploded.
该发现表明,羽毛中的羽枝和小羽枝是先于羽轴进化出来的。
The finding suggests that the barbs and barbules evolved before the rachis in feathers.
霍尔推力器羽流中的离子能量分布情况对于评估推力器羽流影响,优化推力器在航天器上的布局具有重要意义。
The ion energy distribution in the plasma exhaust plume of a hall thruster is important to evaluate the influence of the hall thruster plume and optimize the thruster position on the spacecraft.
第一只是黄眉柳莺,次级飞羽暗色的基部及以黑色为中心的大覆羽留下的选择很少。
First warbler Yellow-browed, the dark bases to the secondaries and black-centred greater coverts leave few other options.
秦羽心中一阵触动,看着这最后几层台阶,秦羽咬牙再次登攀。
Qinyu touched the hearts of a while and watched the last several layers level, Qinyu Teether reach the top again.
获得水力学服务以评估地下水氚羽流并确认跟踪羽流。
Obtained the services of a hydrologist to evaluate the groundwater tritium plume and to make recommendations for tracking the plume.
本文使用阻滞势分析器对霍尔推力器羽流的离子能量分布进行了实验研究,获得了推力器在不同工况下羽流场中关注位置的离子能量分布状况。
Retarding potential analyzer (RPA) had been used to measure the ion energy distribution at a certain location downstream of the low-power hall thruster at various status.
初春进行“部分换羽”,体羽及尾羽进行更换,但飞羽未替换。
In spring, they proceed "part - molting", body -feathers and tail proceed molting, but not the primaries.
以地幔羽来提供板块运动动力的模型所遇到的问题是,自地幔羽升起的物质的体积与移动板块本身的体积相比是偏小的。
The problem with models using plumes to power plate movements is that the volume of material rising in the plumes is thought to be small compared to the volume of the moving plates themselves.
对静止环境中的圆形气泡羽流流场进行数值模拟,得出了气泡羽流的流速场和浓度场。
Numerical simulation of round bubble plumes in still environment is performed to obtain the distribution of velocity and gas holdup.
结果显示,羽髓远端坏死,羽髓中有多量肿瘤细胞浸润,肿瘤细胞呈弥漫性或局部性浸润。
The results showed, There were necrosis at distal extremity of feather pulp and large amounts of tumor cells in the feather pulp.
但这件标本没有羽轴,带状尾巴上只有羽枝和小羽枝。
But this specimen lacked the rachis; it just had barbs and barbules down its ribbonlike tail.
火箭羽流会造成噪声、烟雾、热辐射、环境污染和信号衰减等多种效应,因此研究排气羽流问题至关重要。
The rocket exhaust plume causes the effects of noise, smoke, flame and heat radiation, environment pollution and signal attenuation, etc. So it is important to study exhaust plume.
体形短粗肥胖,前额、头顶、头侧、枕部和冠羽均为黑色,冠羽长约60厘米。
Tubby body obesity, forehead, head cephalic, occipital and Yuhina are black, about 60 centimeters Yuhina.
比如,我们的模型假设,简单的管状羽毛先于羽枝的演化,因为羽枝是由管子分化出羽枝脊才产生的。
The model hypothesizes, for example, that a simple tubular feather preceded the evolution of barbs because barbs are created by the differentiation of the tube into barb ridges.
综述了羽速基因及其对某些经经济性状的影响,并阐述了羽速基因在优质肉鸡育种中的应用价值与意义。
Described feathering alleles and its effect on some economic characters, and presented the application value and meaning in breeding quality table poultry.
国际羽联世界排名榜是从国际羽联前52周的正式比赛中产生的。
IBF world rankings' are derived from IBF-sanctioned events held during the previous 52-week period.
苍鹰一种大型的,强壮的鹰(苍鹰鹰属),翅膀又圆又宽,长尾,全身灰羽或棕羽。
A large, powerful hawk(Accipiter gentilis) having broad, rounded wings, a long tail, and gray or brownish plumage.
利用采自纯系蛋用黄羽鹌鹑健康群体的血样,对黄羽鹌鹑的血液细胞学和主要血液生理学参数进行了研究。
Blood samples collected from the wing vein of healthy pure yellow-feather egg quails were used to study the cellular morphology and physiology parameter of the blood of yellow-feather quails.
沿着羽轴伸展开去的较小的杆状物叫做羽枝,沿着羽枝伸展开去的更小的细丝则叫小羽枝。
Branching from the rachis are smaller shafts called barbs, and then branching from the barbs are even smaller filaments called barbules.
海波在拍《番号》时,再次遇到姚芊羽,并得知她有一个5岁的孩子,便以为姚芊羽已结婚生子,还为她高兴。
Hyperion in the film "number", again met Yao Qianyu, and she was a child of 5 years old, he thought that Yao Qianyu has married, but also for her pleasure.
翼上初级飞羽呈现灰白色,翼前缘经常为淡棕色或黄棕色,比飞羽的深灰色要浅。
Upperwing has pale greyish-white primary bases and often pale rufous or yellowish-brown forewing, paler than dark grey flight-feathers.
观测了固始鸡慢羽系胫色、羽色的变化规律及羽毛生长情况。
The observation on shank color, plumage color and feather growth order of Gushi Fowl was conducted in this experiment.
食羽症褐马鸡全羽胱氨酸、蛋氨酸、赖氨酸和精氨酸含量显著低于健康褐马鸡。
The contents of cystine, methionine, lysine and arginine of the whole feather in the sick brown eared pheasant were significantly lower than that in the health.
文中所采用的高斯模式主要有高斯烟羽轨迹模式、高斯烟羽风向模式和高斯烟团模式。
The Gaussian model mentioned in the paper involved the Gaussian plume model that knew the track of transfer, the Gaussian plume model for wind direction, and the Gaussian puff model.
文中所采用的高斯模式主要有高斯烟羽轨迹模式、高斯烟羽风向模式和高斯烟团模式。
The Gaussian model mentioned in the paper involved the Gaussian plume model that knew the track of transfer, the Gaussian plume model for wind direction, and the Gaussian puff model.
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