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The new progresses:(1)the anatomic studies on the leaves, stems and cones of 25 species Late Mesozoic conifers, particularly those very similar to the living genera, such as Athrotaxites, Torreya, Taxus, Cephalotaxopsis, Cunninghamia and the cheirolepidaceous conifers, such as Brachyphyllum and Psudofrenelopsis;(2) the distribution and evolution of the Late Mesozoic conifers, the relationship between the concentration of CO2 of the atmosphere and the stoma index of the gymnosperms during the Middle Jurassic and Early Cretaceous;(3) the characters, compositions and ages of the Jurassic floras of Yabula Basin, and Erlian Basin of Inner Mongolia and the Early Cretaceous floras and Jiuquan basin and Beishan Area of Gansu.

对12属25种中生代松柏类的枝叶、球果及茎干化石进行了解剖研究,特别是对与现生松柏类相似的Athrotaxites, Torreya, Taxus, Cephalotaxopsis, Cunninghamia及可能属于掌鳞杉科的Brachyphyllum, Psudofrenelopsis等的研究较为深入,发现了4个新种;总结了中国晚中生代松柏类的特点及分布,讨论了重点属的起源和演化问题;研究了中侏罗世、早白世及现代裸子植物包括松柏类气孔与大气CO2浓度关系,发现气

So ,the wolf went to the grocer for a block of calcareousness and eat it down,so ,his voice is turn to soft.then ,he came back to knock at the door of the goat,shouted loudly: open the door ,my baby goats,it's ur mom coming back~!

于是,狼跑到杂货商那里,买了一大块白土,吃了下去,结果嗓子变细了。然后它又回来敲山羊家的门,喊道:开门哪,我的好孩子。

Distant effect of Jurassic collisions of Qiangtang terrane,Lasa terrane and Paleo\|Pacific land onto the Eurasian land made East Qinling\|Dabie Mountains in a compressional circumstance for a long time,and suppressed its orogenic extension;whereas,Cretaceous late\|collisional extension and appearance of West Pacific trench\|arc\|basin system relieved East Qinling\|Dabie Mountains of external compression,instantly result in violent orogenic lithosphere delamination\|extension and depressurized\|calefactive melting,and consequently,led to the formation of large scale Early Cretaceous granitoids and intermediate\|acidic volcanic rocks.

羌塘地体、拉萨地体和西太平洋古陆在侏罗纪与欧亚大陆拼贴碰撞的远距离效应使东秦岭-大别造山带长期处于挤压环境,伸展作用被抑制;白纪的碰撞晚期伸展和西太平洋沟弧盆体系的远距离效应使东秦岭-大别地区的外部挤压消失,导致造山带岩石圈迅速强烈拆沉伸展和减压增温熔融,从而形成大规模早白世花岗岩类和中酸性火山岩。

The major source rocks in the Chagan sag are composed of the second member of the Bayingebi Formation of Lower Cretaceous.

查干凹陷火山岩油藏的主力烃源岩为下白统巴音戈壁组二段;储集空间是原生孔隙和原生裂缝,局部为由于后期溶蚀作用产生的溶蚀孔隙和构造作用形成的构造裂缝;苏红图二段的棕红色泥岩是主力盖层。

Lower Cretaceous in Chagan Depression developed mainly volcanic and clasticrock reservoirs.

查干凹陷下白统主要发育碎屑岩和火山岩两种储层,以碎屑岩储层为主。

The direction of genetic research and improvement strategy of rice chalkiness in future were discussed in this review.

文章对今后稻米白的遗传研究方向及其改良措施进行了讨论。

It now proves to be a late-stage red bed in late cretaceous from the evidence as Charophyta fossil we gathered.

本文根据采得的轮藻化石证实为晚白世晚期红层。

This in vivo study was to examine the historical changes of implanted novel chitosan/collagen composite barrier for confirming the clinical feasibility. Four other commercial GTR membranes were chosen for comparison. Among the resorbable GTR membranes, BioMend Extend and Peri-Aid are collagen base, and GORE-TEX OSSEOQUEST is synthesized membrane, while GORE-TEX e-PTFE (Expanded polytetrafluoroethylene) is synthesized but non-resorbable. Beagle dogs were used as animal model. Buccal mucoperiosteal flaps were reflected in the bilateral mandibular premolar and molar areas. Buccal alveolar bone was reduced on 1st、2nd premolar and molar to a level 5 mm apical to the cemento-enemel junction. Root surface was denuded of periodontal ligament and cementum, and notches were placed at the bone level of each root. The tested GTR barriers were implanted in critical bone defect areas. Flaps were coronally positioned and sutured. Two beagle dogs were sacrificed each time as the designed time period after surgery. Histological and histometirc evaluation at 7 days、14 days、28 days、3 months were performed post-operatively to determine the healing response of each treatment modality.

本研究之目的在评估与工研院生医中心合作发展出可吸收性去乙醯几丁聚醣/胶原蛋白复合之组织导引再生膜片,并选择与可吸收性之BioMend Extend 及Peri-Aid 胶原蛋白膜片,和GORE-TEX OSSEOQUEST 合成高分子膜片,及不可吸收之GORE-TEX e-PTFE合成高分子膜片,等其他四种市售商品材料共同对照评估,应用8只年龄为12个月的雄性小猎犬,均分4组(分别为7天、14天、28天、3个月),为动物活体评估模式,在实验犬之左、右下颚第一、二小臼齿及大臼齿的颊侧区制造骨缺损后,分别植入组织导引再生膜片,依实验设定时间将小猎犬牺牲,取下缺损区骨头,以光学显微镜观察量测其牙质再生高度与齿槽骨再生高度之变化,以探讨其组织再生模式及评估新膜片在临床应用之适用性。

A set of Triassic-Cretaceous terrestrial detrital rocks from 3000 meters to 4000 meters in thickness were developed in the southern edge of Altyn Mountain in the western Qaidam Basin.

柴达木盆地西部的阿尔金山南缘自三叠系到白系发育了一套陆源碎屑岩,厚度可达3~4km,露头条件非常好。

The organic laminae in the argillaceous limestone and dolomitic mudstone of lower Cretaceous are abundant in Jiuquan basin, but it′s heterogeneity is obvious that mainly shows that the difference of laminar algal contents are very large between the same formation and different areas and same well and different depth.

酒泉盆地下白统纹层状泥质白云岩和白云质泥岩中有机纹层结构发育,但非均质性很强,主要表现在相同层位不同地区及同一钻井不同深度藻纹层的含量悬殊。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力