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First of all, this paper introduces the whole design project and interrelated knowledge about Non-destructive detection, ultrasonic detection, and Phased-Array ultrasonic detection Then the paper depicts the principle of Phased-Array focus and abstracts a set of math model and feasible arithmetic on the base of the real parameter of the system. Put forward several problems that exist during the course of system development and program. Introduce some measures of distinguish that are often used in non-destructive detecting and echo wave crest. Then I depict one of the measures in detail that used in the course of non-destructive detection, which is the way of distinguishing whether defects exist or not. Then provide part core program to realize it. This paper also provides main flow chart through analyzing how main control program controls different parts to make the whole system more effective.

然后在文中以较大的篇幅，描述了相控阵聚焦的原理，并根据该系统的实际参数，抽象出一套数学模型和可行的算法，在此基础上提出了在系统开发过程及编程实现过程中存在的一些问题；介绍了在无损检测中缺陷的分类和对回波峰常用的识别方法，详述了系统开发过程中使用的其中一种识别方法，即判别是否存在缺陷的算法，并给出实现之的部分核心程序；详述主控程序如何控制各部分并协调各相关软件的工作，使整个系统发挥最高效能，并给出主要设计框图和程序。

Festal parade is permeated with festive atmosphere, have powerful civilian characteristic and local distinguishing feature.

节日游行洋溢着喜庆的气氛，具有浓烈的民间特色和地方特色。

This thesis studies how the private bank was formed, developed and changed. At the same time, what was its running pattern, organization, financial anction and social influence. Especially pay more attention to the profession habits, moral criterion and the running custom of the bosses of the private bank.Because Chonging is an inland city, the fiduciary loan was its distinguishing feature; the private bank had a intimate relationship with the industrialists and businessmen.

本文对重庆钱庄这一行业的产生、发展、变化的历史过程和它的组织管理、经营方式，及其金融作用、社会影响的演变进行比较深入和细致的梳理，特别注重对重庆钱商的职业习惯和道德准则、经营管理的习俗和技术等文化特色进行剖析由于重庆地处内陆，其信用放款的特点尤其明显。

The five characteristics of the system are exploiting the ordered decomposition of problems in the structure of networks; using the Hasse graph to map the transfer network to the field of real numbers homomorphically; distinguishing the production rules as strong rules and weak rules; using the method of scheduling among stations to balance the search by weak rules in every station; searching in the best-first way both in the large and in the small, but with the different aims respectively, which can be regarded as a BF′-BF strategy in which the macro guides the micro.

该系统有五个特点：利用了一种网络结构的有序分解；采用Hasse图将中转站网络同态地映射到实数域上；将产生式规则区分为强规则和弱规则；采用站间调度的方法系统地平衡了各站弱规则的搜索；全局和局部都为最佳优搜索，只是目标指向不一样，是一种宏观引导微观的BF′-BF混合策略。

And now that the existence of a well organized Jap fifth column in this country had been revealed, all civilians will be wise if they, too, familiarise themselves with positive ways of distinguishing a potentially dangerous Jap from a friendly Chinese.

组织严密的小日本的第五纵队已经在这个国家磨刀嚯嚯，所有官兵必须学会用正确的方法区分友善的中国人和存在潜在威胁的小日本。

Based on the prior information obtained by qualitative inversion, the two stages inversion method was put forward. That is, the first stage is that distinguishing the high-quality element and non- high-quality element, and determining the initial iteration value of element sound velocity reasonably. The second stage is that treating differentially the constraint weights of the high-quality element and non- high-quality element, and then quantitatively inversing the final sound velocity distribution. The results of two concrete specimens indicate that the two stages inversion method can inhibit artifacts effectively and has better defect identification effect than normal one stage inversion.

在获取定性反演先验信息的基础上，提出了两阶段反演的方法：第一阶段，区分优质像元和非优质像元，合理确定像元声速的迭代初值；第二阶段，区别对待优质像元和非优质像元的约束权重，定量反演最终的速度分布。2个混凝土试件的模型试验表明，两阶段反演能有效抑制伪像，具有比常规的一阶段反演更好的缺陷识别效果。

Adopting developing method, analyze the various batches of Prunella vulgaris. Using the DAD detector as distinguishing function and signing 33 common peaks, the most valuable finger-print was obtained.

采用发展的方法，对不同批次的夏枯草进行了分析，利用DAD检测器的峰识别功能，标记出33个共有峰，获得了非常有价值的指纹图谱。

The reform of fire prevention check is one distinguishing point for The Fire Law of the People s Republic of China revised recently.

消防审验制度改革是新修订施行的《中华人民共和国消防法》的一大亮点，而审验改革将牵涉到社会众多方面。

Nowadays with its first-string distribution network, which affiliated many big cities in China, she has achieved respectable status through as a supplier for worldwide famous brands along with providing outstanding products and distinguishing after-services for every lighting project work.

今天，华全以高品质的产品带推动着行业的发展，并供应于世界各大照明知名品牌公司。公司有完善的销售网络，在国内设立多家办事处，覆盖中国各大城市，为各重点照明工程提供优质产品和优质的服务，为中国的照明事业取得自豪的地位。

Nowadays with its first-string distribution network, which affiliated many big cities in China, she has achieved re ectable status through as a su lier for worldwide famous brands along with providing outstanding products and distinguishing after-services for every lighting project work.

今天，华全以高品质的产品带推动着行业的发展，并供应于世界各大照明知名品牌公司。公司有完善的销售网络，在国内设立多家办事处，覆盖中国各大城市，为各重点照明工程提供优质产品和优质的服务，为中国的照明事业取得自豪的地位。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？