natural width 中文意思是什麼
natural width
解釋
固有寬度-
There are five natural sample zones of adiantum reniforme l. var. sinense y. x. lin investigated, and recorded 34 species. 10 dominant species were used to calculate the niche width of populations and the niche overlap interpopulations
調查了5個自然樣地，記錄了34個伴生種，取10個優勢種進行種群生態位寬度與生態位重疊的計算。 -
The paper establishes a ecological transect, with a length of 90 km and width of 16 km, utilizing the part of tm data on 16th august 1998, from harbin to the natural secondary forests in maoershan, heilongjiang province. with supervised classification, the tm data which had been corrected and enhanced via erdas, combining the data of gps in the field, was classified by seven types including : residential area, glebe, paddy field
本論文利用1998年8月16日的tm衛星數據的一部分，設置從黑龍江省哈爾濱市到帽兒山天然次生林區，長90km ，寬16km的生態研究樣帶。通過用erdas對衛星數據的校正、圖像增強等處理，結合gps野外實地調查數據，進行有監督分類。共分為7種類型：居民點、旱田、水田、河流、灌叢、闊葉林、針葉林，並建立了衛星影像分類解譯標志。 -
Paster flake is formed by pasting thin natural flake ( under 6mm ) on waterproof paper. compared to natural flake, it reduces the cost and increases the strength in width direction of flake
貼紙木皮：是將較薄的天然木皮（ 60絲以下）膠粘在防水紙上形成的。 -
With analyzing of the case study and based on simulating and analyzing quantitatively, this article, considering the goal of the performance - based fire - protection design is protecting occupants from being injured and keeping buildings from being damaged, thought that fire compartmentation of a large building of saling books can be divided according to their saling malls and fire compartmentation in the saling mall can be separated by the fire - proof screen. on the evacuation design, the quantity of safety exits around these buildings and the evacuation width should be increased if possible and the safety exit number, exit width and evacuation distance can be determined according to the simulating results on smoke layer temperature and height, concentration of co2 and co, occupants evacuation time and visibility. on the means of preventing and discharging smoke, the most proper measure should be determined according to their geometrical characteristics and the natural means of discharging smoke is feasible to the large building of saling books. based on analyzing of smoke
通過對案例分析研究，本文認為大型書城建築性能化防火設計研究的最終目的是保證人員生命安全和保證建築結構安全，在模擬計算和量化分析的基礎上，大型書城的防火分區可以將中庭連通的書城區域劃分為一個區，在書城場地內可以採用防火卷簾進行防火分區劃分;在人員疏散設計中，應盡可能利用書城賣場的空間設計較多的安全出口和增大疏散寬度，其安全出口數量、寬度和疏散距離可以根據人員安全疏散時間和煙氣溫度、沉降高度、 co2濃度、 co濃度、能見度模擬計算結果驗證確定;在防排煙方式的選擇上，應當根據建築物的幾何特點選取最適宜的措施，就大型書城建築而言，採用自然排煙的方式是可行的。 -
In astronomical situations, the natural line width is seldom directly observed.
在天文學研究中，譜線固有寬度很少能直接觀測到。 -
As the impact human activities have on nature in depth and width develops and the human understanding of the impact the universal matter has on human body progresses, the space of the environment and its matter advances. the nature of " environment consists of natural material elements. those activities of human being will influence the environmental elements and cause the regional systematic biological imbalance
環境所在的空間及其中的物質因素是隨著人類活動對自然界影響的廣度、深度以及人類對宇宙間物質對人體影響的認識推移而發展的；環境的本質是由自然物質因素所構成；人類的哪些活動將影響環境因素，可能導致區域生態系統失衡。 -
Utilizing the principle of the smoothshaft to open 0. 4 mm crankshaft to the width of crack : ( 1 ) when it compares with one position crack, crankshaft natural frequency as crack depth than increase and reducing constantly
利用光軸的原理對裂紋寬度為0 . 4mm的曲軸進行研究得出： （ 1 ）裂紋同一位置比時，曲軸固有頻率隨著裂紋深度比的增大而不斷減小。 -
Unlike inverters for general purpose, auxiliary inverters of subway vehicle have the characters of high power, wide range of high dc input voltage, entirely sealed electronic units and natural cooling. single pulse width modulation ( pwm ) technology is found to be optimal by comparing several different high power inverter technologies and is utilized in the 2 - channel staircase inverter discussed in this thesis
針對地鐵車輛輔助逆變電源的大功率、直流側輸入電壓高且變化范圍寬、輸出電壓穩定且波形質量高，電子部件全密封且要求自然冷卻的特點，分析比較了幾種大功率逆變器技術方案，選擇單邊脈寬調制階梯波合成逆變器為研究對象。 -
Single - double suite - sized, and the height 2. 8 meters, the width of high ventilation, degree of comfort 270, 000 natural beauty of the yangtze river, the other side of riverside and look forward momentum
單雙套房戶型，樓層高2 . 8米，高闊通風，自然舒適， 270度沿江美景，與岸臨盼望，氣勢磅礴。 -
Abstract : the effective width model based on the surface topography of natural fracture, which is closely related to the mechanical and hydraulic characteristics, is established on the theories of fluid mechanics and oil / gas flow in porous media. the study aims at improvingformation damage control and temporary plugging technology for fractured reservoir
文摘:在考慮裂縫表面的實際微觀形態的情況下，採用流體力學與滲流力學相結合的方法，提出了可為裂縫性儲層保護實施暫堵技術提供定量依據的有效寬度數學模型。 -
Natural line width
固有線寬 -
In fact, the bearing with finite width are widely used in rotational machinery. but the calculation of oil - film force of this kind of bearing needs a large mount of time, and analytical method is powerless to this problem. considering of above reasons, this paper leads into averageing natural value method that can meet the requirment of engineering
鑒于工程中廣泛使用有限寬軸承，而對于這種軸承的油膜力的計算，採用數值方法計算工作量很大，而解析法又無能為力的情況，本文引入了一種適用於工程精度要求的平均本徵值法。
分享友人