Niche breadth of four dominate populations at three age groups was studied by the methods of resource utilization ability and ratio. the result shows that : symplocos sectchuanensis is a typical gengeration species whi ch resource utilization ability is strong, and distribution is wide. meanwhile, go rdonia acuminata, castanopsis fargesis and pinus massoniana specialized at some d egree in resource utilizationm, their distribution is limited. especially, the ju venile of pinus massoniana specialized outstandingly. with the devlopment of pinu s massoniana, which is the pioneer population in mt. jinyun, the environment become s unfit to it ' s juvenile. it turns to needle and evergreen broad - leaves mixed fo r est. because the tolerance toward shading of gordonia acuminata is lower than tha t of castanopsis fargesis, gordonia acuminata will be substituted by castanopsis fargesis and other evergreen broad - leaves species are the edificators. the popul ation ' s ability of resource utilization is the inner factor of population distri bution and community succession. the distribution of light and the concentrate of nutrient ( such as n ) is the outer factors of community succession
對縉雲山森林植被的4個優勢種群3個年齡級生態位寬度進行了研究.結果表明，川灰木利用資源的能力最強、分佈廣，為典型的泛化種.大頭茶、栲樹、馬
尾松對資源的利用在一定程度上特化，分佈上有一定的局限性.馬
尾松的中齡組與幼齡組特化現象十分顯著.縉雲山森林植被的先鋒種馬
尾松的發展，導致環境的改變不適于其幼齡個體的生長，群落演替到
針闊葉混交林階段，最後發展為以栲樹等為建群種的常綠闊葉林.種群的資源利用能力，是種群分佈與群落演替的內在原因，光因子和營養元素（如n ）是群落演替的主要外部動力
This paper studied circular queue this basic data structure, discussed the influence of four settings of the front and rear pointer on enqueue and dequeue algorithm pointed out the key problem of writing simple algorithm is the setting of the initial value of the front and rear pointer, summarized the initial value setting and enqueue and dequeue algorithms of four types of front and rear pointer setting
本文研究了一種基本的數據結構? ?循環隊列，討論了循環隊列的四種頭
尾指
針的設置方法對入隊、出隊演算法實現的影響，說明要寫出簡單出入隊演算法的關鍵在於頭
尾指
針初值的設置，總結了四種頭
尾指
針約定下合理的初值設置和出入隊演算法。
The research object in this text is a project of the real estate in the chengdu city from the new vision. the project of the real estate is divided into four stages : concept stage, developing stage, performing stage and last stage. the main content of the project management in the concept stage is how to organize the feasibility test well. the main of the project management in the developing stage is how to organize man, material, finance and how to be ready for all the soft and hardware. the main content of the project management in the performing stage is how to guanatee quality, cost and time planning. the main content of the project management in the last stage is how to evaluate, check and accept, deliver the project and organize the last work well. confronting the present situation in all the stages, i work out some good measures. it is about to think the real estate project management farther in the last chapr. er. i bring out xhe important principle about the project management of the real estate and several question which must be delt with. comprehensively evaluating and perfecting the project management in the whole stages is all contents that the project management has the whole efficacy
本文以全新的視角，以成都市一個房地產開發項目為研究對象，創新性地把房地產開發項目劃分為四個階段：概念階段；開發階段；實施階段；收
尾階段。概念階段項目管理的主要內容是組織好可行性論證；開發階段項目管理的主要內容是組織好人、財、物及一切軟硬體準備；實施階段項目管理的主要內容是保證質量、進度、成本；收
尾階段項目管理的主要內容是評審、驗收及項目交付和組織結束工作。
針對不同階段的項目管理的現狀分析，提出完善的對策方案，最後是對房地產開發項目管理的進一步思考，提出房地產開發項目管理的關鍵性原則及應處理好的幾個問題。
Therefore, it takes an important role in ensuring people ' s life and property and in improving the economic benefit to carrying trade. in this paper, for the purpose of the automobile ' s rear - end anti - collision especially on freeway with heavy frog, we propose the plan of the alarming system for rear - end anti - collision based on the detection technology with ultrasonic
本文
針對汽車防追
尾問題，在高速公路大霧天氣的特殊情況下，主要利用超聲波探測技術，提出了一套汽車防追
尾告警系統方案，並從軟硬體兩個角度對方案的可行性做了詳細的說明。
Electroantennogram responses of carcelia matsukarehae to the volatiles of pinus massoniana damaged by dendrolimus punctatus
松毛蟲狹頰寄蠅對被害馬
尾松
針葉揮發物的觸角電位反應
Pre - clinical studies showed that needleless injected fluids follow the path of least resistance and does not pass into the substance of bone, media of blood vessels or into the fibre substance of the nerve trunks
臨床研究顯示，無
針美槊療法所注入的液體不會滲入骨頭、血管或神經內，它會沿著最少抗體的路徑進入肌膚組織，並且加速皮膚細胞的新陳代謝，讓雞
尾酒中胚層綜合物質更容易於肌膚所吸收。
In light of the limitation of fast fourier transform ( fft ) for the method of traditional spectrum analysis to analyze the unsteady signal, wavelet and wavelet analysis are made for the typical unsteady process signal of starting up and shut down with the good characteristic of simultaneous localization in both the time and the frequency domains based on the field test on the vibration of two - row placed units in lijiaxia hydropower station, in which the signal is decomposed into different frequency band, and then the weak signal is caught and the dominant frequency is picked up for the analysis of the vibration source
摘要基於李家峽水電站雙排機組振動的現場試驗研究，並且
針對傳統頻譜分析方法傅立葉變換（ fft ）對于非平穩信號已力不從心這一缺陷，利用小波分析方法在時域和頻域上同時具有良好的局部化性質，通過對開停機這一典型非平穩過程信號進行小波及小波包分析，將其分解到不同頻帶內，獲取微弱信息和提取優勢頻率，並對其作振源分析，得出開停機初始時刻因水流不穩均出現強烈的振動現象，且低頻段信號能量最大，開停機過程水流脈動壓力和
尾水渦帶擺動是引起定子基礎振動的主要原因。
At the end of the paper, some concrete managerial suggestion was put forward about how to construct a fa
論文的結
尾部分提出了
針對每一種e o關系，管理者應該採取什麼樣的管理措施，以及組織建立理想型e o關系的具體步驟。
A focal plane imaging is limited in catching object when spot - focusing horn lens antenna is applied in ballistic wake microwave interferometer. so we consider to designing multiple beam focusing horn lens antenna in order to augment the range of catching and enhance the probability of hitting the target
本文的主要工作是
針對彈道靶
尾跡微波干涉儀里的點聚焦單波束捕捉目標的有效性能不足，而考慮設計一個具有點聚焦特點的多波束聚焦透鏡天線，以增大捕捉范圍和提高中靶率。
Everybody likes beauty, however, maybe sometimes the reality of beauty is far from so perfect, furthermore, it would be harm to us
摘要：愛美之心人皆有之，但俗話說「黃蜂
尾后
針，最毒婦人心」 ，美麗的背後往往暗藏殺機。
Zhenghe county was divided into three forest regions according to the features of its vegetationdistribution and flora. the author suggested that these forest regions should be transformed ， protected anddeveloped for use respectively in the light of their features
根據政和縣的植被分佈、植物區系特點，將其分為西部丘陵杉木豐產林、經濟林區；中部低山常綠闊葉林、毛竹林區；東部中山馬尾松、針闊混交林區等3個區，建議根據3個林區的特點分別進行改造、保護和開發利用。
