negative angle 中文意思是什麼
negative angle
解釋
負角俯角-
The conventional tail must be at a negative angle of attack, and the canard tail at a positive angle.
通常的尾翼必須處于負迎角，而鴨式尾翼則為正迎角。 -
Joined - wing configuration features diamond - shapes in both the plan and front views. the front wing is aft swept with positive - dihedral angle and the rear wing is forward swept with negative dihedral angle
聯結翼飛機是指帶上反角的后掠前翼和帶下反角的前掠后翼聯結成菱形框架結構的飛機。 -
The company develops the production the panoramic camera to use 120 or220 roll films, the lens focal distance scope : 28 - 300mm, the fuselageuses the pure metal numerical control processing, but preciselyestablishes the shooting angle, the entire automatic attire volume, receives the volume, and may control remotely the photography, in thephotography may the automatic compensation exposure ; the panoramicpicture enlarger and bright room panoramic picture making anenlargement machine may use in 80 cm length the panoram negative, extremely conveniently manufactures each kind of width the panoramicpicture
公司研製生產的全景照相機使用120或220膠卷，鏡頭焦距范圍: 28 - 300mm ，機身採用全金屬數控加工，可精確設定拍攝角度，全自動裝卷收卷，並可遙控拍攝，拍攝中可自動補償曝光全景照片放大機和明室全景照片擴印機可用cm長度內的全景底片，非常方便地製作各種寬度的全景照片。 -
For hoods with shutters in four sides, the results show : 1 ) the hoods positively placed boards are called hoods used for venting airflow ; hoods negatively placed boards are called hoods used for leading airflow ; 2 ) among the hoods used for venting airflow, the most effective hoods should have positive declining angle value of 30, the ratio 4 of areas between the four windward faces and the gular section ( fy / fj = 4 ), the value of b range from 70 mm to 120 mm and the value of b / h range from 0. 5 to 0. 6 ; 3 ) the most effective hoods should have negative declining angle value of 60, the ratio 4 of areas between the four windward faces and the gular section ( fy / fj = 4 ), the value of b range from 100 mm to 170 mm ( the optimum value is 120 mm ) and the value of b / h range from 1. 4 to 2. 2 ( the optimum value is 2. 0 )
對於四面設百葉型風帽，計算表明: l ）正裝傾斜擋板的百葉型風帽可認為是排風型風帽，倒裝擋板傾斜的百葉型風帽可認為是進風型風帽; 2 ）排風型風帽中，擋板正裝30 」 、風帽四個迎風面的有效面積fy和風管凈斷面積fj的比值（ fy腸）為4 、擋板寬度b在70inln到120inln之間、板間距比值隴在0 . 5到0 . 6的百葉型風帽排風效果最好; 3 ）進風型風帽中，擋板倒裝裝60 「 、風帽四個迎風面的有效面積和風管凈斷面積的比值（ fy例）為4 、擋板寬度b在100咖到170mm之間（ 120mm為最佳） 、板間距比值隴在1 . 4到2 . 0的進風型風帽（ b爪= 2 . 0為最佳）的百葉型風帽進效果最好。 -
As for it also has low working voltage and small power dissipation, it has became the ideal succedaneum of crt. furthermore, fed doesn ’ t need negative photo, large visual angle, wide working temperature extent
另外， fed不需背光、視角大、工作溫度范圍寬等優點也對目前平板顯示器的主流產品有源矩陣液晶顯示器提出了嚴峻的挑戰。 -
As regards sk ( bias angle ) and kg ( kurtosis ) values, the fluvio - lacustrine facies or palaeosols increases considerably compared with the aeolian sands. the former displays positive bias and the latter often approximately symmetrical distribution with only a minority negative bias
就sk和kg變化而言，河湖相或古土壤值較之風成砂明顯增高，前者呈正偏，後者常常表現近對稱分佈，僅少數呈負偏。 -
Those sensitive parameters making system have negative damping and occur self - excited shimmy are horizontal pulling lever rigidity, tire sideslip rigidity, steering gear rigidity and damping, kingpin equivalent damping, kingpin caster angle, tire drag. and wheel center distance, tire side rigidity, vehicle wheel unbalanced mass, tire vertical rigidity, and distance from kingpin center to the vertical central line plane of tire have great influence on shimmy, but they do n ' t make the system have negative damping. and horizontal pulling lever damping, suspension damping and rigidity have very small influence on shimmy
橫拉桿剛度、輪胎的側偏剛度、轉向機剛度、轉向機阻尼、繞主銷當量阻尼、主銷后傾角、輪胎拖距是影響擺振的敏感性參數，適當調節某一參數可引起系統的負阻尼，使系統產生自激擺振；輪距、輪胎側向剛度、車輪上的不平衡質量、輪胎垂向剛度及主銷延長線與地面交點至車輪平面的距離對擺振的影響也較大，但不會使系統出現負阻尼；而橫拉桿阻尼、懸架阻尼與懸架剛度對擺振的影響很小。 -
For grinding hss and carbide engraving cutter as well as single lip or multiple lip cutters of various shapes such as radiuses cutters or negative taper angle of cutters
該機可用於磨削各類形似半圓角或反錐角的高速鋼和硬質合金雕刻刀具和單邊或多邊刀具。 -
For grinding hss and carbide engraving cutter as well as single lip or multiple lip cutters of various shapes such as radiused cutters or negative taper angle of cutters
該機可用於磨削各類形似半圓角或反錐角的高速鋼和硬質合金雕刻刀具和單邊或多邊刀具。 -
Each phase angle, whether positive or negative, is referenced to the horizontal.
每個相角不論是正的還是負的，都是相對於水平軸來說的。 -
According to deduction and calculation the critical inclination of failure face has a linear relation with the slope angle, a quadratic function relation with the friction angle of failure face, a logarithmic relation with the height of failure part, a negative exponent relation with the cohesion of failure face, and a quadratic function relation with the unit weight of failure body
通過推導和計算得知，滑面的臨界傾角與邊坡傾角呈線性關系，與破壞面摩擦角呈二次函數關系，與滑體高度呈對數關系，與破壞面的黏聚力呈負指數關系，與巖體重度呈二次函數關系。 -
Unified power flow controller ( upfc ) is one of the most powerful and most promising controllers of facts. if we use upfc to control the transmission parameters, terminal voltage, line impedance and phase angle in normal situation and use it to compensate zero sequence and negative sequence currents when one of transmission lines is cut off, we can implement two phases operating in high voltage transmission lines, which can improve stability and reliability for the transmission system
統一潮流控制器（ upfc ）是功能最強、最具發展潛力的靈活交流輸電系統（ facts ）控制器之一，如果在常規條件下，用upfc實現輸電線路的電壓調節、移相、潮流控制、阻尼振蕩等功能，在發生單相永久性接地或單相斷路故障時，由傳統的三相跳閘改為單相跳閘，用upfc的並補來濾除兩端系統的零序和負序電流，用upfc的串補來提高輸電線的傳輸功率，以實現兩相長期運行，那麼輸電系統的穩定性、可靠性將大大提高。 -
The angle between cu, ph and the first axis is very small, shows significant positive association. the angle between mn, electrical conductivity and the second axis is also small, showing significant association, and the correlations between p and the second axis are significantly negative
環境因子中，氮、有機質、海拔與第一軸呈負相關，其餘因子與第一軸呈正相關，而銅、 ph值與第一軸夾角很小，說明它們和水分梯度有顯著的正相關，而錳、電導率與第二軸夾角小，說明它們與第二軸相關性大，而磷和第二軸卻呈顯著負相關。 -
In addition, from the angle of removing the negative gain media in the cycling gas and the excitation - counteracting media, we put forward the eliminating the impurity by using of the non - uniform stationary electrical field and the swirling electrical field so as to improve the effective excitation of the laser media
本文還從清除循環氣體中負增益介質以及消激發介質的角度來改善激光介質的有效激發，提出了使用非均勻靜電場和渦旋電場清除雜質的方案。理論分析與部分實驗驗證表明，這兩種方案都能有效地清除混合氣中的雜質。 -
The small inclusions - in aluminum alloy can be detected according to this rule. 2. the initial phase angle of the highest spectral line mushrooms with the growth of volume percentage of inclusions while forward direction, but it goes down while negative direction. 3
正向檢測（沿軋制方向）時，最高譜線的初相角隨夾雜物體積百分數的增加而迅速增加；逆向檢測時，最高譜線的初相角隨夾雜物體積百分數的增加而迅速減小； 3 -
Then we widen our research angle to all listed companies, and compare the capital efficiency of china " s listed companies with compartment of main foreign countries. we can come to the following conclusions : eva basically is negative number, not only for china " s agricultural open companies but also for all open companies
我們將研究的視角擴大到所有的上市公司，並將我國的上市公司資本效率與國外主要國家的上市公司進行橫向比較，我們發現以下結論：不僅農業上市公司的資本效率低下，而且所有上市公司的平均資本增加值（ eva ）基本上是在負數區域運行。 -
Effects of blade negative bowing on secondary flow, total pressure loss and outlet flow angle were analyzed quantitatively, mechanism of the effects was discussed as well
定量地分析了葉片反彎曲對葉柵出口二次流、總壓損失和氣流角的影響，並探討了葉片反彎曲作用的機理。 -
Abstract : wind tunnel experiments were carried out to investigate the influence of wind direction on the wind pressure of proximite buildings. mean and fluctuating pressure coefficients on a high building, at sixteen different wind incidences and with one and two interfering buildings, were measured in the tests. this paper presents the characteristics of wind pressure on the building, which varies with the incident wind angle and with the numbers of adjacent buildins. due to the variation of wind angle and the interference effects, the complex feature of pressure distributions can be found on the downstream building surfaces for building group arrangement at certain angle of wind attack. some area of the interfered building for such configuration, in comparison with one single building ' s, may undergo very strong positive or negative pressures
文摘:通過風洞實驗研究了風向對兩個和三個鄰近建築風壓分佈的影響特性.實驗結果給出了在不同風向角下，作用於受擾建築上的平均和脈動風壓系數.當受擾建築處于下游位置時，建築之間的干擾效應主要表現為遮擋影響，建築物上的總體風壓系數不是很大，但在建築物表面上有時會產生局部較大的負壓系數.另外，在某些風向角下由於受到上游分離氣流的影響，在下游建築的局部表面又會出現較大正壓.這些結果可供建築布置和結構設計時參考 -
This study also observed, in the morphological development of gephyrocapsa, there is a significant negative correlation between placolith length and bridge angle, between placolith length and roundness, as well as between placolith length and pore size
這一結論，與su （ 1996 ）在北大西洋所作的橋石屬形態研究是相吻合的。有關形態變化的機制或環境因素影響尚待研究。 -
Similarly, to position the beam below the boresight axis requires the use of a negative angle. this yields a negative and equation ( 7 - 4 ) again yields the applied phase of each element
同樣的，要使波束低於視軸線要求負的角度。增量就是負的，式（ 7 - 4 ）仍可用於計算每個單元的增量。
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