in this paper we find that laser scattering method is the best option to measure the stress of transparent material and has many unsubstitutable advantages such as non-destructive, simple equipment, with clear strip and complete stress information after our summarization and research on different optical methods.

resources-based city is a major city that provides resources in our country. it performs an unsubstitutable function to develop our material industry and infrastructural industry and to support circulation of the whole national economy.

资源型城市是我国资源生产的主要基地，对发展我国材料工业、基础工业以及支撑整个国民经济运行具有不可替代的作用。

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marriage can't go without morality, obligation and law in particular, which is the basic premise for marriage to exist as a social body and continue to play its unsubstitutable role.

婚姻离不开道德、离不开责任，当然也离不开法律，这是婚姻这种社会组织体存在并继续发挥其不可替代的作用的基本前提。

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practice-oriented teaching is a very important part of teaching in engineering university especially in application-oriented engineering university and it has an unsubstitutable function in cultivating students' creating sense, spirit and ability.

实践性教学是工科院校特别是应用型工科院校的重要教学环节，在培养学生创新意识、创新精神和创新能力方面具有不可替代的作用。

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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.

由于教育活动所特有的性质和特点，决定着教育活动在民族形成过程、民族发展过程和民族消亡过程中都发挥着不可取代的重要作用。

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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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