四体的

The fourth milestone was in the embryonic stage of development . Vertebrates and echinoderms began to develop differentiated mouth structures from secondary openings off the blastopore ( an initial opening in the embryonic cavity ).

第四个重要事件出现动物的胚胎发育期，脊椎动物和棘皮动物开始在胚孔（即动物早期胚胎原肠的开口）相对的一端另行开口，并最终发育为成体的口。

In liturgical terminology there is sometimes a reference to two Masses, referring to a division of the eucharistic service which can be seen as early as Acts 20 and which is clearly developed in third and fourth century texts.

在礼仪用语，因此有时是参考两个群众，是指以记名表决的圣体圣事的服务可以被看作是早期的行为， 20日和这显然是发达国家在第三和第四世纪的文本。

The X-ray structure analysis reveals that the metal is in a square-planar N2O2 coordination environment formed by the phenolate-O, the imine-N and the deprotonated amide-O atoms of hydrazone ligand and the N atom of Himdz.

配合物的晶体结构分析表明，中心金属通过酰腙配体的酚基氧原子、亚胺基氮原子、去质子酰胺氧原子以及咪唑的氮原子形成平面四方形的N2O2配位环境。

The perturbative theory of laser induced collisional charge exchange is presented, in which the laser induced collisional charge exchange is described as a four body system and the compound atomic and ionic states are used as basis states of LICCE, and the equation of motion for the probability amplitudes of the states are obtained.

将激光感生碰撞电荷交换看作一个四体系统，发展了激光感生碰撞电荷交换的微扰理论；以独立原子和离子的复合态波函数作为激光感生碰撞体系的基组函数，得到了体系态振幅的运动方程。

We also studied the structural distortion of the MnO〓 octahedron induced by the vacancies of the A-site in manganite, and the influence on the magnetic and transport properties.

在本文中，我们研究了四价离子在锰位掺杂对锰氧化物材料性能的影响，并比较了上述两种理论的适用性和合理性；同时，我们还研究了A位空穴锰氧化物体系中MnO〓八面体的结构畸变，以及对磁学特性和电导行为的影响。

Werner was correct, however, in his conclusions concerning the octahedral geometry of coordination number 6 for cobalt and platinum.

然而，对于钴和四价的铂等配位数为6的八面体几何构形的结论，沃纳是对的。

Four physical meaning of elementary constant of the universe ; Mirror value of elementary constant of the universe in today ; Root cause of elementary constant of the universe is the information entity of the universe .

给出了今天基本宇宙常数的四个主要物理含义，给出了今天基本宇宙常数镜像数值的计算结果，指出了其物理根源是宇宙信息体的时空数值，并根据这个镜像数值反向计算出了宇宙诸总体物理特性的数值。

In fact, the Book of Changes feng shui culture is not superstition, feng shui culture Book of Changes is not mysterious hieroglyphics and omnipotent academic; What is the Book of Changes feng shui culture, I know you from the Book of Changes to the fundamental talked about feng shui culture: Sishuwujing the "moderate" has been recorded: the state will-there must be Zhenxiang, the state will die, there must be Jiaonie, see Achillea between moving between four of the turtles and bad fortune is approaching, the good, and certainly the prophet, mismanagement, the prophet will, if God is sincere.

其实，周易风水文化不是迷信，周易风水文化更不是神秘的天书和万能的学术；什么是周易风水文化，了解这些我得给大家从周易风水文化的根本说起：四书五经中的《中庸》曾有记载：国家将兴，必有祯祥，国家将亡，必有妖孽，见乎蓍龟动乎四体，祸福将至，善，必先知之，不善，必先知之，故至诚如神。

On the third chapter,we discuss the reasons that Jiao Shi Yi Lins special format takes shape from three parts,the tradition of divinatory symbols transformation and divination in verse,as well as the affect of poems form of four characters.

第三部分着重从卦变的传统、以韵语为占的传统、古代诗歌体式对《焦氏易林》四言体的影响三个方面探讨了《焦氏易林》特殊体式形成的原因。

In this dissertation, electrophilic reactions of Nitrosonium with imines, aza-Diels-Alder reactions of N-arylimines with a variety of electron rich olefinic compounds induced by NO~+, and photoreactions of N-nitrosodiphenylamine with aromatic amines were studied.

本文研究了：(1)NO~+与亚胺双健发生的亲电反应；(2)NO~+引发的芳香亚胺和富电子碳碳双键作为亲二烯体的氮杂Diels-Alder反应，高选择性地得到了一系列四氢喹啉的衍生物；(3)N—亚硝基二苯胺与芳香胺发生光化学反应得到了一系列偶氮苯类化合物。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。