fly by method 中文意思是什麼
fly by method
解釋
飛越測高法-
Due to the short distance among the planes which fly in a group, the conventional low resolution radar can not distinguish them in both distance and azimuth ? if we use the technology of isar to resolve the difference among doppler frequency of the targets and obtain a fine resolution cross - cross image, we may separate them, but a long time of coherent processing is needed <, for the formation targets, it can be approximately divided to rigid body and nonrigid body, so for the formation targets, that can be regarded as rigid which has a relative position and an identical movement, can be approximately considered as a large target, and be compensated by translational phase with the rule of minimum entropy, but for the most those cannot accord with the approximation of rigid, being the doppler - frequency of the aim is linear changed, by the relax method with short data, increases the resolving performance of multiple target to the aim in the frequency domain, since cross - range resolution is based on the accumulative time, so it is greatly improve the resolution to formation targets by the instant cross - range image which produced by radon - wigner transformation
低分辨isan成像及干涉技術應用研究一因此直接無法分辨編隊目標的架數，我們借鑒isar的技術，通過較長時間的相干積累，在多普勒頻域上對目標進行分辨。而對于編隊目標，可分為近似剛性的多目標和非剛性的多目標，所以對于可以近似為剛體的編隊目標相對位置固定，運動方式一致，可以近似看作一個大目標，採用最小墑準則對平動相位的進行補償，但是大多數並不滿足剛體近似的編隊目標，由於目標在相干積累時間的多普勒頻率近似呈線性變化，通過對較短數據利用relax的時頻分析方法，提高了頻率域上目標分辨的性能。由於橫向解析度取塊于橫向積累時間，所以利用radnwigner變換得到瞬時的一維橫向距離像大大提高了對編隊目標的分辨，對模擬和實測數據的大量分析結果表明此方法的有效性和可行。 -
Based on the principles of designs of self - compacting and light aggregate concrete mix, sclc of lc30 - lc50 was developed by using absolute volume method. the main factors affecting the workability of sclc were studied by adopting the modified l - 800 fluidity instrument. the results indicate that the key techniques insuring good workability of sclc are about 30 % first - grade fly ash, about 50 % volume sand ratio, 2 % ~ 6 % dosages of silicon fume and compounded superplasticicizers with viscous ingredient
採用改進l - 800流動儀，研究了影響lc40自密實輕骨料高性能混凝土工作性的主要因素，結果表明：粉煤灰摻量保持30左右，硅灰摻量為2 6 ，體積砂率為50左右和摻加具有粘塑組分的復合高效減水劑是保證sclc拌合物具有較好工作性的關鍵。 -
Method of testing fly ash - determination of fineness by wet sieving
飛灰的試驗方法.用濕篩法測定細度 -
In order to improve the pavement performance of lime - fly ash stabilized aggregates and make coarse aggregates form skeleton, the paper confirm the rate of voids of the mixed aggregates by the method of vibrating test
為了改善二灰碎石基層的路用性能，使粗集料（ 31 . 5mm 4 . 75mm ）能夠形成骨架結構，本課題通過振實試驗方法研究了不同粒徑粗集料混合后的空隙率。 -
Fly - by - method
飛越測高法 -
During this paper, definition of the measure enter - cover - probability is given, andthree - dimension detection space are transformed to level detection circles on differentheights. aiming at the most normal situation of symmetric line, cross - to line and cross - awayline taken by the carrier, probablely - enter - cover - target - distribution are analysed in relativemovement method on the premise that targets fly perpendicular to the flying direction of thecarrier. mont - cario method is used to simulate uniformly - distributed - targets situation and getthe measure, and results are used to analyse the influence of line - landscape - orientation - ratio, line - portrait - ratio, and speed - ratio on the measure. for further research, influences of height and blind space are also discussed on base ofradar level detection range, and situations of non - uniformly - distributed targets are alsoresearched
為了分析主動探測空間動態性能，本文首先提出以「目標進入雷達覆蓋區概率」 （簡稱為「覆蓋率」 ）作為評價指標;然後將三維探測空間轉換為不同高度層對應的水平探測圓，針對載機採用雙平行航線、交叉相向航線和交叉同向航線的最一般情形，採用相對運動的方法，分析目標垂直入侵時可能進入雷達覆蓋區的目標分佈情況;再運用蒙特卡洛法進行模擬計算，分析並比較目標服從均勻分佈時航線橫比、航線縱比及速度比對性能的影響。 -
This paper applied a new method to measure real - time carbon content of fly ash of boiler on line, and developed a microwave test system of flue type to determine the carbon content of fly ash. the system of flue type can avoid the deficiencies such as stopping up ash caused by the conventional system
本文提出了一種在線實時測量燃煤鍋爐中飛灰含碳量的方法，開發研製了煙道式飛灰含碳量微波測試系統，克服了以前測碳儀存在的諸如堵灰問題。 -
The engine state is monitored by nonlinear method cooperated with model reference adaptive control, which avoids flameout or fly - off
對發動機狀態進行非線性參考模型自適應監測，可以有效地防止發動機熄火或失速。 -
But research on hydrating characteristics, hydrates and microstructure of hardened cement - based materials, especially mixing with all sorts of mineral mixtures, has not attracted much attention. this paper discusses hydrating characteristics, hydrates and microstructure of hardened cement mixing with slag, fly ash and silica fume by modern testing method
雖然粉煤灰、礦渣等摻合料的摻加技術已較為成熟，但是對于由水泥、粉煤灰、礦渣和硅灰組成的多組分水泥基材料的水化動力學、熱力學研究的甚少。 -
By researching the developing condition of mice industry, promoting and pushing the future mice industry by market managerial methods, the synthesis competitive ability of china will be enhanced and will be with international market and axle, and displays the butter fly effect in mice industry which is a major method in the future city economic development
通過對會展業發展狀況的研究，用市場營銷的手段探討推動和促進未來會展業的發展，進一步增強綜合競爭力，與國際市場並軌，發揮出會展業的「蝴蝶效應」 ，是帶動未來城市經濟發展的主要手段之一。 -
Thirdly, this dissertation briefly introduces the engineering estimation method of the aerodynamic heat and supplies the simplified formulas. not considering the rejection, the ablation and some other factors, the author calculates the stagnation heat flux and the non - stagnation field heat flux distribution of some fly situation as the example aerodynamic heat environment. finally, by using the ansys program, the thermal vibration characters of the plate and missile body structures with different materials is analyzed
這一方法提高了熱振動的分析效率；第三，簡要的介紹了工程上計算氣動熟的估算方法及熱流密度計算的簡化公式，在不考慮燒蝕以及質量引射等影響下，本文計算了幾種飛行條件下駐點和非駐點區的熱流密度分佈，作為本論文算例的氣動加熱環境。 -
Just in time compilation is a method by which interpreted bytecode for example, an emulated instruction stream is translated into native instructions on the fly
通過即時編譯（ just in time ， jit ）這種方法，可以動態地將解釋的位元組碼（例如，一個模擬的指令流）翻譯成本地指令。
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