A cascade of genes orchestrate a series of events leading to formation of blood vessels in an embryo.
级联的基因控制的一系列的事件参与了胚胎中血管的形成。
The minerogenetic series of the Benxi Formation mainly includes G-bed bauxite, followed by Shanxi -type iron ores, stiff fireclay, soft fireclay, and associated gallium elements.
本溪组成矿系列主要有g层铝土矿，其次是山西式铁矿、硬质耐火粘土矿、软质耐火粘土矿和伴生镓元素。
The minerogenetic series of the Shanxi Formation mainly includes coal beds, followed by expanded clay and siderite.
山西组成矿系列主要有煤，其次是膨胀粘土矿、菱铁矿。
The formation of tin deposits of the three series could be closely related to the evolution of the Earth's crust.
三种地球化学系列锡矿床的形成与地壳及地球的演化有密切的关系。
KQC series of air hammers used in gas drilling can solve certain problems, such as lower ROP(Rate of Penetration) and well deviation, which occurred in mud drilling in above medium hard formation.
在油田气体钻井中使用KQC系列空气锤，解决了泥浆钻井在中硬以上地层中钻速慢、易井斜的难题。
In this article, the author comprehensively introduces some aspects of the series of acceptance codes such as background, formation course, direction principles and features.
综述系列规范的出台背景、形成过程、指导原则以及验收规范的特点。
Through the experiment finds that the bubble array can be caused by the series pulse deflective field, and gives out its formation rules. it is provided a method for the bubble array forming.
实验发现系列脉冲偏场能形成磁泡点阵，并给出了其形成规律，为磁泡点阵的形成提供了一种方法。
In addition, salt water reduction environment advantageous to the formation of fluorene series and sulfur fluories compounds is also advantageous to the preservation of naphthalene series compounds.
此外，有利于形成芴系和硫芴系列化合物的咸水还原环境，同样也有利于萘系化合物的保存。
Inspired by a series of landscapes photographed by the artist all over the world, the video suggests a return to their origin and their formation.
受艺术家在世界各地拍摄到的一系列风景照片的启发，本作品试图以录像的形式展现山脉的起源和形成过程。
The microfacies in each series are similar in genesis and environments of formation, and their shifts are relatively continous.
各系列的微相类型具有相近的成因环境特征，且微相的变化表现为相对的连续性。
Two different phases of hydrocarbon inclusions have been identified according to the formation time series of the host diagenetic minerals.
根据油气包裹体寄主成岩矿物的形成时间序列，识别出两期油气包裹体。
The key to produce this shallow gas is to use a set of negative suction technique besides that a series of measures for protecting the shallow gas-bearing formation must be adapted while drilling.
要把这类浅层气开采出来，除必须实施保护浅气层的钻井措施外，关键在于采用一套负压抽汲采气技术。
By simulating the track irregularities with trigonometric series method, the train-bridge coupling vibration equations are established based on the combined modal of train formation and the bridge.
利用三角级数法模拟了轨道的不平顺，采用列车编组和桥梁组合的模型，建立了车桥耦合振动方程。
Based on the analysis of element geochemistry, the volcanic rock series have same magma source and the formation of the rocks is mainly in the form of partial melting.
元素地球化学分析表明火山岩系具有同一岩浆源区，其形成以部分熔融方式为主。
In this thesis, a series of experiments involving chlorine were carried out in a graphite arc-discharge reactor and the study focus on the influence of chlorine on the formation of fullerenes.
针对富勒烯科学所面临的这些问题，本论文通过在石墨电弧放电反应中引入氯源，进行了一系列的有关氯参与下合成富勒烯的实验，重点考察了氯对富勒烯形成的影响。
A sequential selective chemical degradation was performed for the kerogen from the Nenjiang Formation of the southern Songliao Basin by using a series of mild chemical degradations.
采用一系列温和的化学降解法对松辽盆地南部嫩江组烃源岩的干酪根进行连续的选择性化学降解，并对不同降解产物进行色谱—同位素比值质谱分析。
Specially is devoting to the expansion "the belt retainer productbattle formation - S series" product battle formation.
特别是正致力于扩充“带保持器产品阵容-S系列”的产品阵容。
Formation damage caused by secondary precipitation of ferric ion is a potential problem in acidizing and excessive iron level would bring a series of chain reaction and vicious cycle.
在酸化作业中，铁离子的二次沉淀所造成的地层伤害是一个潜在问题，铁含量过高会出现一系列连锁反应和恶性循环。
The second part of series: Nanshe Poets compiled mechanisms, including the two chapters, to discuss the formation of inner logic of Nanshe groups.
第二部分为中编：南社诗人群体编成机制，包括两个章节，旨在讨论南社群体形成的内在理路。
The geologic environment was mostly resulted from the intrusion of magma which led to folding of the overlying volcanic series, the formation of the intrusive dome and the contact broken zone.
形成这样的地质环境条件主要是岩浆侵入作用导致上覆火山岩的褶皱构造、侵入体的岩穹构造及接触破碎带构造等。
The paper discusses the risk of out-contracted of library operation and its cause of formation, and analyzes a series of measures for risk prevention from out-contracted of library operation.
分析图书馆业务外包的风险及其成因，论述控制业务外包风险的一系列措施。
These transform fault series play an important role in the formation and the geological evolution of the Southeastern China continental margin basins and the tectonic-structural zones.
这些转换断层系统对中国大陆东、南缘含油气盆地和边缘构造带的形成和地质演化起着重要的作用。
Our results show that the value of CIA is at 50~65 in the lower part, 65~75 in the upper part and 55~60 in the top part of the Liantuo Formation, Lower series of Nanhua.
宜昌三斗坪地区南华系CIA研究表明该区南华系下统莲沱组下部的CIA值在50~65之间（干燥寒冷），上部为65~75之间（温暖潮湿）和顶部为55~60之间（干燥寒冷）；
The black rock series in the Muchang formation of Lower Cambrian contains abundant NiMoV polymetallic deposits and associated precious metal mineralizations in northwest Hunan.
湖南西北部下寒武统木昌组黑色岩系中蕴藏着丰富的镍钼钒多金属矿床及其伴生的贵金属矿化。
Knowledge economy is a kind of knowledge based economic formation, developed in the soil of industrial economy, and it bears a series of striking features of The Times.
知识经济是在工业经济土壤中生成的以知识为基础的经济形态，它具有一系列鲜明的时代特征。
The Shuiyindong gold deposit, which occurs in the Longtan Formation of the Upper Permian series, is a super-large, high-grade gold ore deposit.
黔西南水银洞金矿为产于上二叠统龙潭组中的超大型、高品位金矿床，矿床由多个金矿体组成。
The Gejiu strata formation is the mainly mineral-hosting rock series, but not the main source for mineralization.
个旧组是矿床的主要赋矿岩系，但不是成矿物源的主要提供者。
The Gejiu strata formation is the mainly mineral-hosting rock series, but not the main source for mineralization.
个旧组是矿床的主要赋矿岩系，但不是成矿物源的主要提供者。
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