main crown 中文意思是什麼
main crown
解釋
大碹-
The main roosting place is in needle broadleaf forest and broadleaf forest. most often seen birds include blue back tit, crown feather throstle, chinese bulbul, yellow - throated minivet, toucan, sparrow, white wagtail, gray wagtail, yellow wagtai and zosterops japonica japanese white - eye etc. in the stream valley, bird species that can be seen is very little. however, what can be seen is lead color water fieldfare that is quite many
武陵地區共觀察到77種鳥類，主要棲息在針闊葉林與闊葉林，常見的有青背山雀、冠羽畫眉、白頭翁、紅山椒鳥、巨嘴鴉、麻雀、白?令、灰?令、黃?令、綠繡眼等；溪谷可見的種類最少，但可見到數量頗多的鉛色水鶇。 -
The main research work in the thesis is as follows : ( 1 ) base on the analysis of cutting principle and tooth geometry characteristics of klingelnberg cycloid bevel gear, the formula of tooth design calculation was verified and the equation of imaginary crown gear tooth flank was deduced by establishing appropriate coordinate system
主要研究工作和成果有: （ 1 ）通過分析克林貝格擺線錐齒輪銑齒原理，對其部分幾何設計演算法進行了推導驗證，並建立了適當的坐標系推導了假想冠輪的齒面方程。 -
Analyse the klingelnberg amk855 gear milling machine. through analyse the transmission chain of the gear milling machine, analyse the transmitting principle and manufacture principle, introduce the two - - part cutter head, the process of formation of extended epicycloide and inaginary crown gear cutting principle ; overall introduce the formation of tooth face, deduce the calculation formulas of the main setting parameter of gear milling machine, and proving the correctness of the setting calculation formulas by the program of ‘ calculating of klingelnberg cyclo - palloid spiral bevel gear milling setting parameter ’
通過剖析該機床的傳動鏈，分析了其運動原理和加工原理;介紹了雙層萬能刀盤、延伸外擺線的形成過程和假想平面產形輪切齒理論;全面介紹了齒面的形成方法，推導了銑齒機主要的調整參數的計算公式，並用「 klingelnberg擺線齒錐齒輪銑齒調整參數計算」的程序驗證了推導的公式的正確性。 -
The crown dragon network science and technology limited company has a high quality the technical team, condensed the member which as soon as the endorsing industry kind young, has the vigor, they have the outstanding performance in respective position as well as the rich actual combat experience, has the charm is their creativity and the offer spirit. " with the perfect technical service, satisfies the customer to request " is our management idea ; the company by the unremitting endeavor, a higher goal requests throughout oneself, while consummates own management pattern unceasingly and sharpens the technical research and development ability, promotes the chinese internet enterprise development. the company hosts hit the hypothesized main engine, the system development, the main engine are entrusted with entire, machine rent, the domain name registration, the homepage manufacture, the enterprise post office, the website application, the promotion and so on the basic network service, for individual, the enterprise and so on each kind of organization provides the consummation the service
正清然科技公司作為立志從事綠色環保事業的一員，鑒於我國目前以城市為中心的環境污染日益嚴重，並有急劇向農村蔓延之趨勢，深深感受到自己身上的責任義務和緊迫感，於2000年初組織了國內一流的科研開發人員，用了四年的時間傾力攻關，厚積薄發，拿出了擁有自主知識產權的「碧清」品牌清潔護理系列產品，與其他有機溶液清潔產品不同的是，該品主要採用提取純天然植物精華為原料，對所清潔對象採取去污上光除菌護理並可形成保護膜，達到濕潤滋護防老化抗黃變防靜電等作用，是目前最為理想的綠色環保清潔護理系列用品之一，該品的研製，填補了國內空白，並達到世界領先水平。 -
Mongolica young stand, secondary natural forest, and the mixed forest of larix olgensis and fraxinus mandshurica rupr. countermeasures for controlling soil degradation were also recommended. the study got following results : ( 1 ) from young stand to mid - age of larix olgensis, with the closure of canopy and the decrease of undergrowth vegetation cover, soil acidity, enzyme activity, total inorganic phosphorus, available k, soil moisture and total porosity decreased significantly ; while soil organic matter content, humus component content, the amount of three main types of microbes, acid phosphatase activity, and bulk density in rhizosphere soil and non - rhizosphere soil increased with the increase of the amount of forest floor litter ; from mid - age stand to near mature stand, with the decrease of stand density and crown cover as well as the restoration of undergrowth vegetation after preliminary thinning, soil organic matter content, fulvic acid, exchangeable acidity, exchangeable aluminium, neutral phosphatase activity, total amount of inorganic phosphorus, the amount of actinomycetes, soil moisture, and total porosity in rhizosphere soil and non - rhizosphere soil apparently increased ; from near matu re stand to mature stand, soil activity acidity, organic matter content, humus component content, available phosphorus, total amount of amino acid, available k, soil enzyme activity, soil moisture, and total porosity in rhizosphere soil and non - rhizosphere soil decreased, but total phosphorus, soil acidity ( in particular, exchangeable aluminium ), and bulk density increased
結果表明： （ 1 ）從落葉松幼齡林到中齡林，隨著林冠的郁閉和林下植被蓋度的急劇下降，林地土壤酸度、土壤酶活性、無機磷總量、速效鉀、土壤水分含量、總孔隙度呈明顯下降趨勢，而根際和非根際土壤有機質含量、腐殖質各組分含量、三大類微生物數量、酸性磷酸酶活性和土壤容重隨著凋落物的增加呈明顯上升趨勢；從中齡林到近熟林，由於撫育間伐，林分密度及郁閉度下降，林下植被蓋度逐步得到恢復，根際與非根際土壤有機質含量、富里酸、交換性酸、交換性鋁、中性磷酸酶、無機磷總量、放線菌數量、土壤水分含量、總孔隙度呈明顯的上升趨勢；從近熟林到成熟林，隨著林齡的增大，根際與非根際土壤活性酸、有機質含量、腐殖質各組分含量、有效磷含量、氨基酸總量、速效鉀、土壤酶的活性、土壤水分含量和總孔隙度呈下降趨勢，而根際與非根際土壤全磷含量、土壤酸度（特別是交換性鋁）和容重呈增加趨勢。 -
All the results can be utilized by engineers, during the designing and construction. the main conclusions are listed as follows : ( 1 ) based on the shortest line between weak interbed and limit of excavation and the location of point of intersection between limit of excavation, classification of weak interbed distribution is set up, and the distance of distribution is defined ; ( 2 ) according to the strength and deformation equivalent principle, influence zone of weak interbed is introduced, and a new method to simulating the weak interbed with thickness is built ; ( 3 ) some quantificational results on influence of weak interbed respectively at crown, right shoulder and right wall are summarized ; ( 4 ) some quantificational results on influence of weak interbed with the distance between weak interbed and limit of excavation 0. 2d, 0. 5d, l. od are gained ; ( 5 ) some quantificational results on influence of weak interbed in the rock mass with confining coefficient 0. 38, 1. 0, 1. 5, 2. 0, 3. 0 are summed up ; ( 6 ) some quantificational results are summarized on influence of the underground surrounding rock mass stability with weak interbed, in the representational surrounding rock mass graded ii, iii, iv ; ( 7 ) according to the studying results some advices are suggested on designing of underground engineering
主要結論如下： （ 1 ）以軟弱夾層到開挖輪廓線最短距離和最短距離線與開挖輪廓線的交點位置為指標對軟弱夾層的分佈部進行了分類，並確定了軟弱夾層分佈距離； （ 2 ）根據強度等效和變形等效的原則，引入了軟弱夾層影響帶的概念，建立了模擬軟弱夾層厚度的一種新方法； （ 3 ）總結出了軟弱夾層分佈在拱頂、右拱肩、右邊墻時對地下洞室穩定性影響的量化指標； （ 4 ）分析出了軟弱夾層距開挖輪廓線0 . 2d 、 0 . 5d 、 1 . 0d三種情況對地下洞室穩定性影響的量化指標； （ 5 ）總結出了在不同的側壓力系數（ 0 . 38 、 1 . 0 、 1 . 5 、 2 . 0 、 3 . 0 ）地應力場中軟弱夾層對穩定性影響的量化指標； （ 6 ）得出了在、 、代表性圍巖中軟弱夾層對穩定性影響量化結果； （ 7 ）根據數值試驗成果提出了在有軟弱夾層圍巖中地下洞室設計原則的幾點新內容。 -
May appear variegated with mottled pattern over main veins. usually upright single crown, rarely suckers. standard
有時在主葉脈有斑葉的花樣。通常單個頂芽，很少有側芽。標準型。 -
In this paper, using large - scale current finite element software, analysising nanbu jialingjiang bridge as engineering example, considering the united action of arcade and of arch with the structure on crown, the author build several 3d finite element models including original bridge, dangerous bridge, all phases of strengthening bridges and strengthened bridge. in order to decide the most unfavorable load case accurately and quickly, using static analysis method this paper draws out the influence surface of bend moment for main section ; base on built models the paper analyzes the internal forces on entirely strengthening process and knows the damaged degree of dangerous bridge and does feasibility studying on its strengthening method ; finally, the paper simply analyzes the unite action of arcade and of arch with the structure on crown
本文利用大型通用有限元軟體，結合南部嘉陵江大橋這一具體的工程實例，考慮連拱及拱與拱上建築的聯合作用，建立了包括原橋、危橋、加固各階段和加固后各狀態在內的空間計算模型；為了準確、快捷的確定最不利荷載工況，利用靜力法繪制了舊橋主拱圈各控制截面的彎矩影響面；對其加固改造全過程進行了靜力分析計算，明確了危橋的病害程度並對其加固方法進行了可行性研究；最後，簡單分析了考慮連拱及拱上建築與否對該橋主拱圈內力的影響。
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