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The existence of divergent national or regional standards can create technical barriers to trade, even when there is political agreement to do away with restrictive import quotas and the like.
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当地方标准和国际标准发生分歧时，它将阻碍贸易的发展，甚至于当官方已废除配额出口的时候也如此。 |
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The existence of fixed point for some class of order-compression decreasing operators is studied, and some existence and uniqueness theorems are obtained. Finally, we give an example of application.
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摘要研究了在序压缩条件下非紧减算子的不动点的存在性，得到了新的不动点定理，并给出了一个应用的例子。 |
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The existence of generalized lymphadenopathy in association with malnutrition, especially when parents were suffering from tuberculosis,suggests that the pericardial effusion is most probably tuberculous in origin.
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另外广泛的淋巴结病变合并营养不良，尤其是其父母有结核感染，提示心包积液很可能是结核病变。 |
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The existence of legal department is an objective phenomenon, but is also created subjectively.
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摘要法律部门是客观现象，又是人为地划分的。 |
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The existence of one-sided organizing criminal depends on the different fields where he is present.
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组织犯的不同存在范围，制约着片面组织犯的存在与否。 |
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The existence of peoriodic solutions is given first, then the global attractivity of coupled system of semilinear parabolic equations is investigated by using upper and lower solutions and through principal eigenvalue analysis.
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首先给出周期解的存在性，再用有序上下解及主特征值分析方法研究耦合半线性抛物方程组周期解的全局吸引性。 |
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The existence of perforation affects buckling characteristic and load capacity of members and makes the design formula different with that of non-perforated members.
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孔的存在导致薄膜应力的重新分布，影响构件的屈曲特性和承载能力，使得无孔构件的分析与设计公式不再适用于开孔构件，因此有必要研究开孔构件。 |
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The existence of silent earthquakes gives scientists a completely new angle on the slip process by permitting the detailed study of fault zones through every stage of their movement.
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然而，无声地震的存在却提供科学家一个全新的角度，来看待断层滑动的过程，让他们对断层带运动的每个阶段做更仔细的研究。 |
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The existence of solutions for two-point boundary value problem subject to nonlinear second order differential equation is studied by many methods, such as iterative method, lower and upper solutions method, degree theory, Critical theory and etc.
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非线性二阶常微分方程两点边值问题解的存在性的研究方法有很多，如迭代法、上下解方法、度理论、临界点理论等。 |
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The existence of solutions for two-point boundary value problem subject to nonlinear second order differential equation with mixed boundary conditions is studied by using topological transversality theorem, and some known results are improved.
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现利用拓扑横截定理，考虑了二阶常微分方程两点边值问题在组合边界条件下的解的存在性，对二阶常微分方程两点边值问题所对应的辅助问题作先验界估计，并利用拓扑横截定理，得到了边值问题解的存在性，推广了一些已有结果。 |
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The existence of such lava-coated planets, which may prove commonplace, will force a reconsideration of theories about planetary formation.
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这类被熔岩包覆的行星，一旦被证实为宇宙中再寻常不过的天体时，将迫使天文学家重新审视关于行星形成的理论。 |
