- 更多网络例句与先存在相关的网络例句 [注：此内容来源于网络，仅供参考]
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In order to investigate the existence conditions of the robust optimal state feedback of uncertain system, we have to study the problem of GARE, that is the solution existence of the following equation PA+A'P+Q-PMP=0, Q=Q', M=M' In chapter 2, using some preliminary results and properties of the Riccati differential equation, we have established the sufficient conditions for the GARE problem.
在讨论不确定性系统LQL方法的状态反馈解的存在性条件时，引出了第二章讨论一般代数Riccati方程解的存在性问题，对一般Riccati方程 PA+A'P+Q-PMP=0，Q=Q'，M=M'第二章中先列举讨论了Q、M为正、负定各种情况下的实对称解的存在条件，然后着重研究了M、Q不定的情形。
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Directed against the existing problems in traditional mixing process, secondary mixing techniques, such as pre-mix cement mortar, pre-mix cement paste, sand enveloped with cement paste, coarse aggregate enveloped with cement paste and aggregate enveloped with cement paste are discussed, and the effect of different mixing technological processes on concrete mixing quality is studied. The homogeneousness, compression strength of concrete and the power consumption are tested during the test, and compared with the traditional mixing method.
针对传统混凝土搅拌工艺中存在的问题，讨论了先拌水泥砂浆法、先拌水泥净浆法、水泥裹砂法、水泥裹石法、粗细骨料全造壳法等二次搅拌工艺，研究了不同工艺流程对混凝土搅拌质量的影响，测试了不同条件下混凝土的匀质性、抗压强度指标及功率消耗，并与传统搅拌工艺进行了对比试验。
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However, the right ventricule has a crescentric shape, with a separate infundibulum and prominent trabeculations, it is difficult to describe the right ventricule by a simple geometric figure and therefore, difficult to assess its function in a conventional two-dimensional echocardiography.
另 卜，肺动脉高压（Pulmon叼 hypertension，PH）是左向右分流型CHD如ASD常见的并发症之一，PH的存在与否及其严重程度与先心病治疗决策、手术疗效及临床预后密切相关，但先心病合并肺动脉高压的发病机理仍不清楚，尚待进一步研究和探讨。
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In the ***, all types and fundamental principles of Radon transform are summarized systematacially. This *** starts from the general linear Radon transform, and then researches how to use the damped least square method to find the solution of the forward transform. However, the least squares smoothing effect will lead to a certain degree of trails in the data of Radon domain, which led to the application\'s limitations. After that the implementation in Radon domain and relative merits of linear Radon transform, parabolic Radon transform and polynomial Radon transform which have time invariance are introduced, the conjugate gradient method that can solve numerical solution is also given. And then the high resolution Randon transform is discussed, it introduces the regularization theory and Bayes principle into inversion, which successfully remove the negative affect caused by discrete Radon transform. Finally, we introduce the optimal weighting similar coefficient Radon transform, which adapt to the time variant quality of hyperbolic Radon transform.
本文系统总结了Radon变换的各种类型及其基本原理，从τ- p变换(即一般线性Radon变换)出发，研究利用阻尼最小二乘平方法求解其正变换，但是最小平方法的平滑作用会导致Radon域数据存在一定程度的拖尾效应，给这种方法的应用带来了很大的局限性；然后先容了具有时不变性的线性、抛物和多项式Radon变换在频率域的实现及其优缺点，给出了求解其数值解的共轭梯度算法；接着讨论了高分辨率Radon变换，它把正则化思想和贝叶斯原理引进到了反演中，很好的克服了离散Radon变换产生的截断效应对结果的不利影响；最后先容了适应双曲Radon变换时变性质的高分辨率最优相似系数加权Radon变换。
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Type B is found in chlorophyta, high plant chloroplasts and cyanobacteria with two exceptions, Prochlorococcus marinus and Synechococcus sp.
RubisCO可分为三种类型：Ⅰ型存在于植物和一些光合细菌中，是由8个大亚基和8个小亚基形成的16聚体L_8S_8；Ⅱ型存在于甲藻和某些光合细菌中，通常由大亚基形成2聚体L_2；而Ⅲ型存在于一些古细菌中，先由2个大亚基形成2聚体L_2，再由5个2聚体形成10聚体(L_2)_5。
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Some metaphysicians contend that the relation between the lump and the statue, on the one hand, and the relation between Tib and Tibbles, on the other, cannot be fully understood in terms of the concepts of parthood and identity, but require a further concept, a non-mereological concept, the concept of "constitution": the pre-existent lump at a certain point in time comes to constitute the statue (or a certain quantity of gold or certain gold atoms that first constituted only the lump come to constitute them both); pre-existent Tib at a certain point in time comes to constitute Tibbles (or certain cat-flesh or certain molecules …).
一些形上学家承认在金块和雕像之间、Tib和Tibbles之间的关系，这些关系不能完全根据"parthood"和" identity"的概念进行理解，而必须要一个进一步的概念，一个non-mereological的概念，"构成"的概念：先在存在的金块在时间中的某个点构成了雕像（或，一定数量的金子或金粒子首先构成了金块，继而构成了这两个。）先在的Tib在某个时间点开始构成了Tibbles（或某些确定的猫肉、粒子等等）。
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The result of uroscopy of the proband was strong positive. There was a novel deletion mutation of c.876-877 del TC in the coding region of exon 6 of IDS gene, which was a hemizygous mutation. However, the mutation of his mother and sister was a heterozygous mutation. Detection of the exon 6 of IDS gene showed that the mutation was not found among normal controls and other patients with MPS I, IV, and VI other than MPS II. Homology comparison of amino acid sequences from different species showed that the phenylalanine glutamine of the mutation site of c.876-877 del TC located in p.292-293 was highly conserved. The activity of IDS enzyme of the proband was only 2.3 nmol/4 h/mL, which was much lower than normal; but the activity of IDS enzyme of his father, mother and sister was 641.9 nmol/4 h/mL, 95.8 nmol/4h/mL and 103.2 nmol/4h/mL, respectively.
结果显示：先证者尿检呈强阳性；其IDS基因exon 6编码区内存在c.876-877 del TC新缺失突变，为半合子突变，而其母、其姐为杂合突变；正常对照和其他非II型MPS患者的IDS基因exon 6的检测结果均未发现该突变；不同物种氨基酸序列的同源性比对显示： c.876-877 del TC突变所在的位置即p.292-293的苯丙氨酸谷氨酰胺高度保守；酶活性测定的结果显示：先证者的IDS酶活性仅为2.3 nmol/4 h/mL，大大低于正常值，而其父的为641.9 nmol/4 h/mL，其母的血浆酶活性为95.8 nmol/ 4h/mL，其姐的为103.2 nmol/4 h/mL。
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Pedicularis plants and their pollinators are interdependent in terms of corolla structure, pollinator behavior and caste, and blooming phenology. Species with different floral design have different pollination syndrome.
不同花部特征的马先蒿具有不同的传粉综合特征，马先蒿植物的花部特征与传粉昆虫的行为，与开花物候和传粉者阶层之间存在复杂的相关性。
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Results The prevertebral height recovery platform stage happened in all the three methods of reduction. There is no significant difference between the prevertebral heights in the maximum experimental load; the prevertebral height increased first and stayed stationary later in the hyperextension reduction procedure; in the device reduction process, the prevertebral height stayed stationary at first and dereased later.
结果 在三种复位过程中都存在椎前高度恢复平台期；在试验载荷最大值时椎前高度前后比较，差异均无显著性意义（P＞0.05）；过伸复位中椎前高度是先增加后停滞，器械复位中椎前高度是先停滞后增加。
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The reason is there should be a special thesis form for the Chinese Literature Department, there is fundamental difference in the thesis for Dianoia and general knowledge. Knowledge is possibly and nearly complete objective, but the Dianoia must be with certain degree subjective. For example, if we want to discuss Confucianism, we must admit that there is existence of 'Jen' in human's mind, otherwise any interpretation will be in vain. We must admit in advance that 'the God' is absolute existence and then the discussion of Christianity philosophy could be proceeds.
那个理由就是，中文系的论文应该有自己的样子，传递思想与传递知识的论文有根本上的不同，知识可以做到几乎完全的客观，但思想却必然带有一定程度的主观，比如我们要讨论儒家思想的话，就得先认同人的心中有「仁」的存在，不然什麼都没办法说，又或著讨论基督教的思想时，也得先认同「神」是绝对的存在才能有后来的讨论。
- 更多网络解释与先存在相关的网络解释 [注：此内容来源于网络，仅供参考]
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be：存在
因为一个人要先"存在"(Be),才能"看见"(See)等等. 比起中国字谜来,这种谜语实在太浅了. 杜甫有一名句:"无边落木 萧萧下". 以这句诗作谜面打一个字,答案是"曰". 因为在六朝时,东 晋之后是宋齐梁陈,齐梁的皇帝都姓萧,
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pre-existing microcrack：预先存在的微裂缝
pre-existing fractures 原生裂缝 | pre-existing microcrack 预先存在的微裂缝 | pre-existing rock 先成岩石
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pre-exist：先存在的
may well (完全)能, (满)可以 | pre-exist 先存在的 | gyroscope 陀螺仪,回转仪
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pre-existing rock：先成岩石
pre-existing microcrack 预先存在的微裂缝 | pre-existing rock 先成岩石 | pre-existing topography 原有地形
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preexist：先前存在
preexilic 放逐前的 | preexist 先前存在 | preexistence 先在
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preexistence：先在
preexist 先前存在 | preexistence 先在 | preexistent 先在的
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preexistence：灵魂先在
preexist 先前存在 | preexistence 灵魂先在 | preexistence 前世
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preexistence：先在/前世/灵魂先在
preexist /先前存在/ | preexistence /先在/前世/灵魂先在/ | preexistent /先在的/前世的/
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You were here before the world began：創世之先祢已存在
Above all wisdom and all the ways of man 胜过眾人的智慧和道路, | You were here before the world began 创世之先祢已存在. | Above all kingdoms, above all thrones 超越万国,高过王权,
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preexisting：先发生的,先存在的
Predict 预言,预告 | Preexisting 先发生的,先存在的 | Prerequisite 先决条件,前提