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Based on having read a great deal of literatures about economic threshold, the authors pointed out the necessity and importance for applying the method of economic threshold in the studies of Phyllostachys pubescens ecosystem in this paper, and the authors also put forward the concept of economic threshold of Phyllostachys pubescens ecosystem and its research frame and some problems which should be pay attention to.

摘 要：在閱讀大量有關(guān)經(jīng)濟(jì)閾值研究文獻(xiàn)的基礎(chǔ)上午夜男人一级毛片，創(chuàng)新地把經(jīng)濟(jì)閾值與毛竹林的科學(xué)研究結(jié)合起來，指出在毛竹林生態(tài)系統(tǒng)研究中亚洲Av中文在线第一页，應(yīng)用經(jīng)濟(jì)閾值研究手段與方法的必要性和重要性中文字幕网站免费看A片在线，并提出毛竹林生態(tài)系統(tǒng)經(jīng)濟(jì)閾值的概念、研究框架及其注意的一些問題igao视频为爱找点刺激，為毛竹林優(yōu)化經(jīng)營和豐產(chǎn)培育提供新的思路與技術(shù)欧美中文字幕淫乱视频。

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In this paper, we put forward an idea that the concrete pump car is robotized. For some problems about booms'robotization of concrete pump car, a lot of studies are thoroughly accomplished, by means of intelligent optimization method and finite element method of model design method, robotic kinematics and dynamics theory, computer graphics, computer simulation, mechanical control technology, hydraulic control technology, and so on. This idea establishes a new development way for research, design improvement and updating of the concrete pump car.

本文提出了泵車布料機(jī)構(gòu)的機(jī)器人化的設(shè)想射射射射射偷拍，并對泵車布料機(jī)構(gòu)機(jī)器人化所涉及的若干問題特级毛片全部免费播放A一级，應(yīng)用現(xiàn)代設(shè)計(jì)方法中的智能優(yōu)化技術(shù)、有限元分析技術(shù)以及機(jī)器人運(yùn)動學(xué)和動力學(xué)理論99re在线视频、計(jì)算機(jī)圖形學(xué)原理影音色资源、計(jì)算機(jī)仿真影音先锋最新AV资源网站、液壓控制等技術(shù)，進(jìn)行了深入細(xì)致地研究JIZZ精品免费，從而為現(xiàn)代泵車的研究一级A片高潮喷免费观看、設(shè)計(jì)改進(jìn)和升級換代開辟了新的途徑。

At the same time, these studies have given us some imaging techniques and means on the research of skin flap blood vessel morphology, additionally, with the unceasing development of computer processing tech, re-establishment of skin flap 3D dissect coming to be possible. This study established a foundation for observation on the state of skin flap blood supply stereoscopically and making best operative route and treatment plan, implementing the development from plane anatomy to stereoscopic and digital anatomy.

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The book covers both plants and animals, and deals with all relevant areas of research, including biogeography, field work, systematics, theory, and genetic and molecular studies, with special emphasis to topics,including sympatric speciation, reinforcement, the role of hybridization in speciation, the search for genes causing reproductive isolation, and mounting evidence for the role of natural and sexual selection in the origin of species.

該書內(nèi)容覆蓋植物和動物婷婷六月丁香综合，并且涉及所有相關(guān)的研究領(lǐng)域操逼免费视频网址，包括生物地理學(xué)，野外工作日本熟妇高清色本在线婷婷，系統(tǒng)分類學(xué)色色91，理論，和遺傳和分子研究日日摸日日，特別強(qiáng)調(diào)了包括同區(qū)域物種形成欧美在线a片播放97视频，增強(qiáng)，雜交在物種形成中的作用无码精品视频一区二区免费，尋找導(dǎo)致生殖隔離的基因a一级黄色网，尋找自然和性別選擇在物種起源中作用的證據(jù)。

Tangut studies revived around 1978 in China, and since then collected Hsi-Hsia manuscripts abroad and absorbed into it the initial fruits of Chinese experts has been the enormous and often tedious task .My research is accompanied by all serial number of 7,300 Tangut fragments on Aurel·Stein' collection and identification.

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The studies exploring the relationship between HPV infection and laryngealcarcinoma began in 1980s,since then,almost all the research was aimed at theinvestigation of the HPV prevalence in the biopsies,due to differences in thechoice of DNA detection method,cell sampling and the geogen,the prevalenceestimates of HPV have varied accordingly,and led to two different points about therelationship between HPV infection and laryngeal carcinoma:some researchersdemonstrated that a higher HPV prevalence could be found in laryngeal carcinomas(from 50% to 90%)than in benign laryngeal lesions,suggesting a relationshipbetween HPV infection and laryngeal carcinoma;but the other researchers foundthat the isolation of HPV is no greater in the laryngeal cancers(from 5% to 43.3%)than in the normal larynx or benign laryngeal lesions,thereby questioning itsctiological significance,so,the role of HPV in the development of laryngealcarcinomas still remains unclear.

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Based on western accounting fraud theory and other correlated research, the author studies the motivates ^ maker and methods of listed company" fraud by case studying ; Considering CPA"s special role in preventing and detecting accounting fraud, the emphasis of the thesis is paid to CPAs responsibilities on detecting fraud and the cause of audit failure; in order to decreasing management fraud some counterbalances are put forward based on foregoing discuss.

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The dissertation focused on the technologies, algorithm and application of WBSDM, and the main studies and new contributions are described as follows: 1. Technologies of spatial data mining and web-based data mining are summarized and then the concept of WBSDM is put forward and its main functions and meaning of research are disserted in detail. 2. The framework of web-based spatial data mining is presented. And its background, definition, features, functions, system structure, implementation strategy, key technologies and so on are illustrated systematically.

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