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。
The mechanical behavior of articular cartilage is essential for the research of movement mechanism, load carrying capacity and pathology of diarthrosis and has great significances and practical values for the treatment and diagnosis of arthropathy as well as the development of artificial articular materials
關節軟
骨力學行為的研究對動關節的運動機制、承載能力和病理研究等至關重要,對關節病的治療、臨床診斷以及人工關節材料的研製
具有十分重要的理論意義和實用價值。
Our company introduces the international advanced rain gear production equipment, produce every style fine umbrella, sandy beach umbrella, the advertising umbrella and umbrella bone mainly, attractive designs, quality is fine ; the company has been in line with basedding on quality since establishing, the aim of taking sincerity as the principle, it is diligent to pass for many years, the products were improved constantly, the products have already found a good sale in the countries, such as southeast asia, japan and america and europe, etc
本公司引進國際先進雨
具生產設備,主要生產各款式晴雨傘沙灘傘廣告傘及傘
骨,款式新穎,品質優良公司自成立以來本著以質量為基礎,以誠信為原則之宗旨,經過多年努力,產品不斷革新,現產品已遠銷東南亞日本及歐美等國家,歡迎國內外客商來涵來電洽購。
The experiments show that nacre, a type of natural nano - bioceramic material, when used as bone implant for reconstruction of bone defects, is not only biocompatible and biodegradable, but also osteoconductive and osteoinductive
本文根據國外文獻有關利用珍珠層作為
骨植入材料的研究報道,就珍珠層的生物相容性和可降解性,及其所
具有的
骨誘導和
骨傳導作用的動物臨床實驗結果,進行了綜合分析和論述。
Currently, with an excellent biologic compatibility and degradability, - tcp bioceramic has been widely applied to solve bone deformation problem caused by pathological changes. and the degradation process of this kind of materials being imported into body has become a hot research topic
目前, ? tcp生物降解陶瓷由於
具有良好的生物相容性和可降解性已被廣泛地應用在因各種病變造成的
骨缺損方面,對這類材料在植入體內后的降解過程的研究受到普遍的重視。
Made of bine, good tenacity, fine work. the part carried by hand is wedged bone that it won ' t wound the bone when fighting according to an elder
藤製,韌性很好.做工精緻.手握的一端鑲嵌
骨頭.
具老人介紹說:打人的時候不會損傷
骨頭
Bioactive substance such as hydroxyapatite ( ha ) and bioglass are coated on their surfaces in order to improve the bond between the implants and bone tissue
為改善其植入后與
骨組織的結合,常在其表面塗覆一層
具有生物活性的物質,如羥基磷灰石和生物玻璃等。
Bone china table wares
骨瓷制餐
具
The noritake crestwood gold dinnerware is made of superior white bone china in a soft white, accented with a brilliant baroque / scrolled edge. a timeless and elegant choice in dinnerware
這套餐
具選用上等白色
骨瓷為原料,配以巴洛克式圖案的金邊。包括:大餐盤,沙拉盤,麵包&黃油盤,杯子和杯碟等五件。
Hong kong shops stock a huge variety of porcelain products and bone china imported from various provinces in mainland china. available in co - ordinated sets or as single items, the colours and patterns of chinese tableware represent blessings and celebrations in chinese culture
典雅的中式食
具,許多時會用上寓意喜慶吉祥的顏色和圖像,流露傳統色彩以質感細致的
骨瓷和新
骨瓷製成的餐
具,更是上等的器盅,令人愛不釋手。
The 16 - foot skeleton of the northern bottlenose whale had been acquired by the natural history museum for scientific research
這
具長16英尺的北巨齒槌鯨的
骨架目前已被自然歷史博物館收藏起來進行科學研究。
To meet the processing requirements before sintering, the pressed briquet was pre - calcined at 1150 to make it possess adequate processing strength at first and then was shaped through precise turning on the numerical control lathe according to the design diagram of the femoral head prostheses of partial hip joint
為滿足燒結前坯體加工的要求,壓制后的坯體在1150預燒,使其
具備一定的加工強度,然後按照半髖關節股
骨頭假體的形狀尺寸設計圖在數控車床上進行精密車削成型。
All of the design 、 produce and management cadreman are came from large well - known automobile and aircraft corporation 、 welding machine manufacture company 、 japan well - knownwelding jig professional design corporation ; 16 professional jig designer with abundant experience and advanced design hardware and software ; comeplete various machining facility ; integrated organization
公司設計、生產、管理
骨幹均來自於國內大型知名汽車飛機企業、焊裝設備生產廠家、日本知各焊裝夾
具專業設計公司;擁有專業夾
具設計人員20餘名,
具備豐富的經驗和先進的設計手段,各類加工設備齊全,組織機構完善。
The protein nucleic acid complexes were identified by autoradiography for 48 h. the psg5heo and igfbp - 6 promoter pcat vectors were transfected into cos - 7 cells with iipofectamin2000 ; these cos - 7 cells where treated with 1 jxm e2, with lonm tcdd and with both lonm tcdd and 1 jxm e2, individually ; the cat protein was examined by cat - els a. results : the congenital skeletal defects in fetal rats were induced with 10 - 15ug / kg tcdd or with 100 - 140 mg / kg ra with dosage - dependence effect. the igfbp - 6 mrna in rat calvaria tissue and mc - 3t3 - el cells were increased with tcdd and ( or ) ra, whereas the cell proliferation and igf - 2 mrna in mc - 3t3 - el cells was decreased in the status of e2
結果: tcdd在大鼠胚胎發育時期
具有
骨骼致畸作用,
骨骼發育畸形包括:內翻足、脊柱裂、顱面
骨發育缺陷、無尾畸形等;隨著tcdd濃度的升高( 10一15林擴kg ) ,致畸率明顯上升( 14 . 7 %一24 . 6 % ) ; tcdd和ra聯合用藥可以增強對大鼠
骨骼發育的致畸效應; e :對成
骨細胞內igf一2基因有正性調節作用,對igfbp一6基因有負性調節作用, tcdd可以抑制e :對細胞內xgf一2和igfbp一6的調節作用。
They found that these bone tools cut the carcass effectively.
他們發現這些
骨質工
具切割獸肉是挺好用的。
The skull at this early age is cartilaginous and flexible.
頭
骨在這幼稚時期是軟
骨性的,
具有可屈性。
Square slabs were cut from cubes cast with various aggregate sizes.
從
具有不同
骨料粒度的立方澆注塊中切出方形板塊。
The artificial cartilage has some advantages : 1. there are two cages in the inner face to fix the prosthesis, the cages should be full with allograft bone granules in operation. 2
仿生個體化人工關節軟骨具有以下特點: a關節內面帶兩個cage ,手術時內置自、異體骨及bmp 、 fgf 、 tgf等骨生長因子,起生物固定關節面的作用。