The feathers attached to the arms and the tail evidently possess the structures of " modern feathers ", which consisting of the central shafts ( rachis ) and parallel barbs. dromaeosaurids are unusual group of maniraptoran theropods. they share many similar or the same features with archaeopteryx or other primitive birds, such as : u - shaped furcula, uncinate process, laterally facing glenoid of shoulder girdle, comparatively long forelimb, large semilunate carple, retroverted pubis, ascending process of astragalus, and " modern feathers " with rachis and barbs etc. these facts indicate not only that dromaeosaurids had developed many bird - like characters in course of the advanced maniraptorans toward birds, but also that there seemed to be the co - evolutionary trend between the feathers and the skeletal bones
奔龍類是一類較為特殊的手盜龍類( maniraptora ) ,它具有許多與始祖鳥archaeopteryx甚至其它早期鳥類相
似或接近的特徵,主要表現在:叉骨u形與始祖鳥和孔子鳥類的相同,背肋鉤狀突在孔子鳥類和個別反鳥類中也存在,肩臼窩絕大部分指向側方類
似於始祖鳥,肩胛骨與烏喙骨間的夾角非常接近90也和始祖鳥的相
似,前肢從
比例上講顯得較長,大的半月形腕骨使肘部能向側方折過來,恥骨伸向後下方,距骨上升突與原始鳥類中的為同源結構,羽毛已有顯著的分化且具備了現代羽毛的基本結構等等。
Based on the analysis of mechanism for joint region, the " frame - wall " and " aslope compression stub column " mechanical models and yielding patterns of core zone of the joints are set up. the shear load - carrying formulation for joint core zone is also given in terms of plastic ultimate analysis. and then, the comparisons between the formulas given in this paper and that of chinese design code ( draft ) and nonlinear fem as well are presented
對節點核心區的抗剪,通過受力機理的分析,建立了鋼「框架剪力墻」加混凝土「斜壓短受力體系及其屈服機制,根據塑性極限分析,給出了節點核心區抗剪承載力計算的迭加公式, 《規程》公式和非線性有限元近
似模擬分析結果進行了
比較。
Empirical likelihood ratio test for autocorrelation in linear model
線性模型中自相關的經驗
似然
比檢驗
Finally, avirulent and virulent plant, bacteria of pseudomonas solanaceanim was investigated by chromatography. the result showed that there are two peaks when both bacteria was eluted, but their peak area ratio was quite different. when virulent bacteria was subject to chromatography after vibration by ultrasonic wave, both chromatographial behaviors of both avirulent and virulent pseudomonas solanaceanim were same basically, which showed a equilibrial peak and a eluting one
最後,表徵了植物病原菌? ?青枯菌的強、弱致病菌株,結果顯示強、弱菌都有兩個洗脫峰,但峰面積
比例有明顯的差異,強弱致病菌株經振蕩后,其色譜行為基本相
似,表現為一個穿透峰和一個洗脫峰。
Towards the research on two flood water of yuhe river in datong city during 2004, by measuring and comparing their discharge, sediment concentration 、 nutrient include organic, phosphorus, potassium, azote, the result shows that the nutrient content of the sediment is greatly larger than that of supernatant fluid
摘要以2004年大同市御河乾渠兩場洪水為研究對象,對其流量、含沙量、養分(包括有機質,氮,磷,鉀)做了測定和
比較,研究結果表明:洪水中下層泥沙中的養分含量遠大於上清液中的養分含量;洪水中整體養分含量隨著含沙量的增大而增大,並且養分含量和含沙量呈近
似線性關系。
United had the lead they deserved, but bolton ' s barnstorming start to the second period yielded no more than they deserved as wolfe equalised from a right - wing free - kick
曼聯的表現值得領先,但是博爾頓下半時開始了瘋狂的反撲,他們
似乎還不滿足於沃爾夫利用右側自由球扳平
比分。
At first glance, being ceo of a non - profit organization may seem like a cake walk compared to her commercial counterpart - - there is no bottomline to watch, no share price impact to worry about
驟眼看來,在非牟利機構當ceo ,與其他商業機構相
比,
似乎是較為容易,因無底線可從,亦不用擔心股價受影響。
Lakers insiders - - oops, sorry kobe - - say buss called bryant to assure him he hadn ' t meant to suggest any change in policy, but that kobe was less than conciliatory
湖人的內部人員爆料說巴斯曾打電話給科
比向他保證說他並不是想暗示說在球隊的方針政策上有什麼變動,這讓人驚訝。但是科
比似乎並沒有被安撫的跡象。
The storm culminated in one matchless effort that seemed likely to tear the island to pieces, burn it up, drown it to the tree - tops, blow it away, and deafen every creature in it, all at one and the same moment
最後的這一陣暴風雨更是威力無
比,
似乎要在片刻之間,把這個小島撕成碎片,燒成灰燼,淹沒樹頂,再把它吹個無影無蹤,要把島上的生靈都震昏震聾。
Filling knot, which can hold higher medium pressure and stand tensile strength like steel wire to result in satisfied effect which or ordinary asbestos can ' t reach
適用於高壓往覆泵及輸送介質內含有懸浮顆粒那雜質的離心泵,能承受更高的介質壓力,芳綸纖維具有很高的抗拉強度,這是普通盤根甩無法
比似的。
The nikon approach ( large sensor area and large pixel sizes to improve the signal to noise ratio might be a more sensible solution )
尼康道路:採用更大的傳感器和更大面積的像素來降低信噪比,似乎更合理一些。