the educational activity has special nature and features, which determines that it plays an unsubstitutable part in the formation, development and dying process of a nationality.

supervision over and management of the leading group in college is an important aspect of the organizing work, in which public supervision plays an unsubstitutable role.

加强干部队伍监督管理是高校组织工作的一个重要方面，群众监督将发挥其无法替代的作用。

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paint-knife skills in canvas painting can generate an unsubstitutable effect of bright color and featured illustration.

将刀绘技法运用于风景油画的创作，可以收到色泽鲜明、画面响亮的特殊效果，有着油画笔不可替代的作用。

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land, as one of the rare resources and an important economic factor, plays an unsubstitutable role in the development of society and economy.

土地是一种稀缺性资源和重要经济要素，在社会经济发展中具有不可替代的作用。

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in addition, peer group has unsubstitutable positive influence on the development of the children's self education.

另外，同伴群体对儿童自我教育的发展方面也有不可替代的积极影响。

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water is the spring of life and the unsubstitutable resource by which man exist.

水是生命的源泉，是人类赖以生存的不可替代的资源。

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clinical analysis of 5 cases of neonatal gastric perforation

新生儿胃穿孔5例

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quartz-crystal resonators is one of common electronic components which is a core and non-substitutable frequency component in electronic equipment because of its high precision and high stability.

石英晶体谐振器是常见的电子元件。由于其具有高精密、高稳定性等重要特点，是电子设备不可或缺的核心频率器件，是频率器件中是其它产品难以替代的。

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in the combination of public art concept and flat glass art, the property of melt casting of glass plays a non-substitutable role.

而玻璃的熔铸特性又成为公共艺术理念与平面玻璃艺术结合所依赖的重要特性。

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the cone beam volume ct ( cbvct) system has the non-substitutable superiority in the field of non-damage detection and reverse engineering.

CBVCT（Cone Beam Volume CT）系统在无损检测和逆向工程等领域具有不可替代的优越性。

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turn loose or free from restraint.

从压制中释放或获得自由。

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from dependence to independence, to free from restraint, like surface.

从依赖到独立，从束缚到自由，浮光掠影般。

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since the civil service system was first introduced in our country in 1993, the evaluation system of civil service, which has undergone more than 10 years' baptism, has been gradually developed into an important incentive mechanism of the civil service system with a non-replaceable position.

1993年我国开始推行公务员制度以来，公务员考核经过了十年余载的洗礼，逐步发展成为公务员制度的一项重要激励机制，有着举足轻重的地位，发挥着不可替代的作用。

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it is non-replaceable in the battlefield from past to future for the sake of its sally and defence as a main weapon in the earth.

作为陆军地面武器的主要突击和防御力量，在过去和未来的战场上有着不可替代的作用。

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communication equipment simulation is an important step for the beforehand study of communication and communication countermeasures equipment. it provides non-replaceable testing avenue for the theory study in these two research domains.

通信设备仿真是进行通信和通信对抗装备预研的重要环节，为这两个领域的理论研究和装备研制提供了重要的验证手段。

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the electric spark build-up welding technology features less heat input and negligible residual stress etc., which is non-replaceable in the welding of special key components.

电火花堆焊工艺具有热输入量小、残余应力可忽略不计等显著特点，在特殊关键部件焊接中有不可替代性。

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ecological environment is a non-replaceable capital resource, and a good ecological environment is the basis on which a nation can develop healthily and steadily.

生态环境是一种不可替代的资本，良好的生态环境是一个国家获得健康、稳定发展的基础；

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phosphorus and its compounds are non-renewable and non-replaceable limited resources.

磷是一种不可再生、难以替代的有限自然资源。

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this important methodology has been so important in many fields that it has become a non-replaceable methodology in philosophic studies.

思维实验在每一个领域的作用都很重要，它已经成为了一种不可替代的研究方法。

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good faith principle of insurance contracts is the basic guiding principle of insurance contracts and plays a vital and non-replaceable role in maintaining order of insurance activities, safeguarding legitimate interests of parties and balancing the interests of parties and society.

保险合同的诚实信用原则，对于维护保险活动的有序进行、保障合同当事人的合法利益、平衡合同当事人利益与社会公共利益，都有着重要而不可替代的作用，是保险合同的基本指导原则。

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a study on flotation of micro-grained gold mineral of impregnation structure in alkaline media and the mechanism of agent

微细粒浸染型金矿碱性介质浮选法中药剂作用机理研究

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