查询词典 formation

The SiO2 saturability of volcanic rocks of Xishanbulake Formation and Shuiquan Formation is lower than that of tholeiite of Zhamoketi Formation.

西山布拉克组和水泉组火山岩的SiO2饱和度低於扎摩克提组拉斑玄武岩。

In this paper, we studied M. meretrix ferritin, cathepsin B and caspase genes, which are involved in clam larval shell formation, nutrition, metabolism and apoptosis, respectively. We have cloned the three genes, investigated the temporal and spatial expression profile both at gene and protein level in trochophore (L1), D-veliger (L2), pediveliger (L3) and postlarvae (L4). The potential roles of these proteins were analyzed with specific inhibitors during larval development. Firstly, embryos were found developed into trochophore-like larvae with no shell if cultured at gastrula stage in artificial seawater without iron. Shell-like structures were formed only in the presence of iron. The larvae which had been transferred at L1 stage into ASW developed normal shell. This indicated that iron and iron associated protein are important for larval shell formation. The EST sequence which is homologous with ferritin, which is a principal iron metabolic protein, was selected from the M. meretrix cDNA library. The full-length of ferritin subunit cDNA was cloned by RACE. The results of real-time PCR revealed that the MmeFer mRNA expression changed before and after the larval shell formation.

本论文以文蛤幼虫为研究对象，分别对文蛤幼虫发育过程中贝壳形成相关的铁蛋白、营养及变态相关的组织蛋白酶B及变态过程中细胞凋亡相关的caspase三个基因进行了克隆，分析了基因及编码蛋白在担轮幼虫期(L1)、D形幼虫期(L2)、壳顶幼虫期(L3)和稚贝期(L4)的时空表达特征，解析了其可能的功能，并研究了相应酶类的特异性抑制剂作用对幼虫发育过程的影响，进行了目标蛋白的功能验证，详述如下：研究结果显示，在文蛤胚胎发育到原肠胚时放入不含铁离子的人工海水中培养，发育成无壳的畸形，随着人工海水中铁离子添加浓度的升高，幼虫长出壳状组织接近正常状态；而发育到L1期幼虫放入不含铁离子的人工海水中培养却可以发育出正常的壳，推测铁和铁代谢相关蛋白在幼虫贝壳初始形成有重要的作用。

The two volcanic materials are similar but are also different ①the partition mode of rare-earth element is similar to that of the basalt.②the increase content of the rare-earth element content in transitional layer shows that it enrichs in this segment due to the volcano events. Moreover, the comparability of the partition mode shows that the volcano-genic materials and the basalt are of the same source.③low Eu anomaly different from the high Eu anomaly of medium-acidic tuff in Meishan section, that show that their formation is different④there are plentiful basalt detritus.⑤there are enrichment of the Ti element.⑥the lower content of siderophile element of Ni and Co, especially in the transitional layer, show that there were not extraterrestrial events and big scale basic or ultrabasic volcano eruption events in this area. These characteristics show that the sedimentary source of Xuanwei Formation and Kayitou Formation is basalt.

1稀土元素配分模式与玄武岩类似；(2)稀土元素含量在异常层的增加反映了火山事件导致了它在该段地层中的富集，而配分模式的相似性反映了火山物质来源与玄武岩具有同源性；(3)低"Eu"异常区别于煤山剖面的中酸性凝灰岩高"Eu"异常模式，说明界线粘土岩成因也不同于煤山剖面的界线粘土；(4)大量的玄武岩岩屑；(5)Ti元素的富集；(6)亲铁元素Ni和Co含量较低，特别是在界线异常层含量降低，表明本区在界线处可能并不存在地外事件和大规模基性、超基性火山喷发事件，这些特征反映本区宣威组和卡以头组物质来源主要为玄武岩。

Researchs on Train Formation Plan is started from 50's in our nation. The old railway scientists and technologists present a lot of models and algorithms seeking optimal single wagon group Train Formation Plan, which greatly developed research theory on Train formation plan.

我国铁路对于列车编组计划的研究是从50年代开始的，老一辈铁路科技工作者先后提出了许多寻求单组列车编组计划最优方案的模型和算法，极大地丰富了列车编组计划研究的理论基础。

Atmospherical plasma jet carries to the surface modification of tungsten oxide nanorod. The results showed that the modified use of plasma gas (O2), in the same distance to increase deal with test-chip of the surface then there is the formation of small particles with the trend, and in the higher distance to some deal with test-chip of the trend of the formation of small particles lower. N2 was more significant than that of Ar plasma for surface modification, and the test piece is somewhat part of the surface nano-rods box integration with the formation of small particle side of the box there is scheduling a clear rod-like.

本研究应用常压低温电浆设备对氧化钨奈米棒进行表面处理，其改质结果显示使用电浆气（O2）下，在一样的高度距离下随了处理次数的增多，试片表面随之融合一起有形成小颗粒的趋势，且在一样的次数下随了距离高度越高其形成小颗粒的趋势越低；在使用电浆气体为N2与Ar下，电浆气体N2比Ar有较大幅度的电浆表面处理，且试片表面有些许部分奈米棒融合一起形成小方块颗粒其方块颗粒侧边有明显的棒状排立。

Discussion on membrane formation mechanismBased on the Flory-Huggins theory, Phase equilibrium equations of PVDF/DMAc/water ternary system were wrote out, and the binodal and spinodal lines in the phase diagrams of the system were obtained via numerical calculation. Combined the kinetic description and the thermodynamic phase diagram, membrane formation process were analyzed, which prepared the theoretical foundation for the further membrane formation mechanism research.

论文主要从如下四个方面展开：(1)PVDF疏水膜成膜分相机理探讨基于Flory-Huggins理论推导了三元制膜体系凝胶分相组成的线性表达式，并通过&浊点法&测定了PVDF／N，N-二甲基乙酰胺／水／成膜体系的凝胶边界线组成，通过对实验数据的拟合，得到了简捷直观的线性表达式，ln(φ_1)/(φ_3)=bln(φ_2)/(φ_3)+a，误差小于3％。

Cerebral thrombosis、cerebral embolism and encephalorrhagia Because the blood fat lead high, deposition on the cerebral wall, gradual The formation artery gruel kind harden spot piece, the spot piece increase to make blood vessel blood inside the wall bolt formation and cause blood vessel break Blood but formation of.

脑血栓、脑栓塞及脑出血是由于血脂过高，沉积在脑血管壁上，逐渐形成动脉粥样硬化斑块，斑块增多使血管壁内血栓形成，致使血管破裂出血而形成的。

The results show that results with four methods are similar, the 5 wind-damaged slash in the restorable communities are divided into 3 formations by 5 investigation. They are Castanopsis carlesii formation, Gordonia acuminata and Cunninghamia lanceolata formation and Neosinocalamus affinis formation.

结果表明，4种分类结果基本相似，所调查的5个风灾迹地恢复群落样地分为小叶栲群系、四川大头茶＋杉木群系和慈竹群系等3个群系。

Twelve hours latter,uterine vessels formation was revealed by tannin-Fe lavement solution.Results The uterine vessel formation of rats in the model group showed that varices,tetanic shape,the density of all levels vessel net increased obviously and its twist,serpentine shape decreased markedly,while that in the large,middle dosage Gongning groups displayed absolute contrarily and fit like a glove with the normal control group.The uterine vessel formation of rats in the small dosage Gongning group and indomethacin group also showed the same transformation as it in the model group.

结果 模型组大鼠子宫各级血管扩张增粗，走行僵直，螺旋状和蜿蜒状走行消失或明显减少，血管形成的各级血管网密度增加，分布不均；消炎痛组、宫宁小剂量组子宫血管仍存在较明显的血管腔扩大、走行僵直和血管网密度增加，宫宁大、中剂量组子宫血管构筑的异常改变消失或明显改善。

The metamorphic rocks of the area consist of granulite, plagioclase-gneis, biotite leptite and various kinds of schists of granulite to amphibolite facies By reconstruction, this metamorphic series is composed of three original formations which inciude five originai rock types: intermediate-acid volcanics formation at the bottom basic-felsic bimodae volcanits formation in the middle and basic-andesitic-felsic volcanics formation at the top...

区内太古代变质岩系广泛发育，其下部为深变质的麻粒岩相地层，上部为中深变质的角闪岩相地层，后者产出红透山式铜锌矿床多处，以及张胡子沟铜矿床和大荒沟硫铁矿床等一系列块状硫化物矿床(图1)。矿石中铅同位素年令为25～26亿年，在形成时代上可以和鞍本地区鞍山群对比。

Green function defined inphase space differs from one in coordinate space by its struc-ture which exhibits nonlocatity in coordinates and oscillatorybehavior with respect to momenta.

在相空间中定义的Green函数不同于通常坐标空间的Green函数，在结构上显示出对坐标的高度非局域性，而对动量则显示出振荡行为。

The upper front part of a saddle;a saddlebow.

前鞍桥马鞍前面的上部分；前鞍桥