水下攻擊 的英文怎麼說
中文拼音 [shuǐxiàgōngjī]
水下攻擊
英文
submerged attack- 水 : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
- 下 : 下動詞1. (用在動詞后,表示由高處到低處) 2. (用在動詞后, 表示有空間, 能容納) 3. (用在動詞后, 表示動作的完成或結果)
- 攻 : Ⅰ動詞1 (攻打) attack; assault; take the offensive 2 (指責別人的過錯; 駁斥別人的議論) accuse; ...
- 攻擊 : 1 (進攻) attack; assault; launch an offensive 2 (惡意指責) attack; accuse; charge; slander; v...
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In this paper, a space model of antisubmarine homing torpedo ' s trajectory has been established based on the surface warship attacking underwater target, a formula which can be used to calculate the trajectory length of antisubmarine horning torpedo is also given
在建立了水面艦艇發射反潛自導魚雷攻擊水下目標的空間彈道模型的基礎上,提出了反潛自導魚雷全彈道長度的一種計算公式。We constructed fences using 2 x 2 x 2 factorial design to examine the effect patterns of food availability, predation and interspecific competition on population dynamics and spatial behavior of reed voles, microtusfortis. we expected to test two hypothesises : ( 1 ) availability of high quality food, predation and interspecific competition have independent and addictive effects on population system dynamics for small mammalia herbivore ; ( 2 ) availabiliry of high quality food could reduce home range and aggressive behavior level between individuals of microtine, predation and interspecific competition have independent effects on spatial behavior of microtine
以2 2 2析因實驗設計,在野外圍欄條件下,探討食物可利用性、捕食及種間競爭對沼澤田鼠( microtusfortis )種群動態及空間行為的作用,旨在檢驗下述特定假設: ( 1 )高質量的食物可利用性、捕食及種間競爭對植食性小哺乳動物種群系統動態具有獨立的和累加的效應; ( 2 )高質量的食物可利用性可降低田鼠個體間的攻擊行為水平,並導致其巢區減小;捕食與種間競爭對田鼠的空間行為亦有獨立的作用。Second, by computing the trajectory of the missile and the method of analyzing cep, influences that the fighter ' s height, speed, pitch angle, the deflection angle between fighter and target, and the target moving characters make on the times of fighter attack and missile launch are deeply developed. third, by relating the motion of the missile and the fighter, the influences that fighter ' s dive angle and the deflection angle between fighter and target make on the attack field of the fighter are discussed in this paper when the fighter perform vertical and horizontal attack. criterion of attack effect is proposed focusing on attack time of the fighter, trajectory of the missile and destruction probability to the target
本文主要完成了以下幾個方面的工作:對導彈可發射區和飛機可攻擊區進行建模,通過對導彈彈道的模擬計算,並運用典型的圓概率偏差精度分析方法,詳細討論了飛機實施攻擊時,飛機的飛行高度h 、速度v 、俯仰角、與目標的偏離角_ x及目標運動特性等對飛機攻擊時機和導彈發射時機的影響;因此,將飛機和導彈結合起來,詳細研究了飛機在垂直平面和水平平面內實施攻擊時,飛機俯沖角和與目標的偏離角_ x對飛機的攻擊范圍的影響;以飛機實施攻擊的時間t 、彈道特性和對目標的殺傷概率p來評判對地攻擊的效果;最後給出典型算例,通過對空地攻擊過程的模擬實現,對飛機飛行過載提出要求。The proposed adaptive watermarking scheme enables more energy of watermark to be embedded with imperceptibility, so the stego mesh can be resilient to higher intensity of attacks than with traditional schemes
這使得本演算法能夠在嵌入的水印信息不可見的前提下嵌入更大能量的水印,從而保證水印隱藏對象能夠承受更大強度的攻擊。After target is detected the on - board avionics suite in combination with the automatic control system of the helicopter solve the task of bringing the helicopter to the designated point and automatic firing of the weapons selected by the pilot
當捕獲目標后,機上的自動控制系統與電子系統將解算任務數據,引導直升機飛向敵潛艇水域,並在飛行員指令準許下自動發射武器進行攻擊。Nurse sharks, for example, have been responsible for lots of attacks because divers sometimes mistakenly believe they ' re nothing but passive underwater puppies
例如護士鯊,就製造了許多攻擊事件,因為潛水者有時錯誤地相信它們不過是被動的水下小動物而已。The air bombardment of german fortifications was crucial, even if not as effective as hoped, and the naval attack on german defenses was essential, even if it did not silence most of the german guns, but at h - hour when the landing craft lowered their ramps the success or failure of the greatest amphibious attack in the history of warfare, the event upon which the success of the allied effort in world war ii depended, all came down to the bedford boys and thousands of men like them scrambling in chest high water, weighed down with equipment and ammunition, and the water they splashed into was crimson with their blood and that of their buddies
德國防禦工事的炮火是殘酷無情的,即使它沒有達到預期的效果;對德國防禦的海上攻擊是至關重要的,即使它並不能平息德國人多數的炮火;但是,當攻擊開始時刻,登陸艇漸漸放下它們的滑梯的時候,戰爭史上最偉大的兩棲作戰? ?一場決定二戰的聯盟力量的勝利的戰爭? ?的勝敗就掌握在了貝德福德的男孩們以及數以千計的像他們一樣在齊胸的水裡前行的戰士們手裡,他們背負著沉重的裝備和武器,跳進他們和他們兄弟的鮮血染紅的海水裡。Effect of impact angle on erosion of the steels used for hydraulic turbines under impacting of sand particles from the yellow river
黃河砂沖擊下水輪機用鋼沖蝕攻角效應For instance, the velocity distribution can be prescribed for the upper surface at a high angle of attack while simultaneously the velocity distribution can be prescribed for the lower surface at a low angle of attack
比如可指定的速度分佈在水面上的高攻角的同時,可以在指定的速度分佈在低角度下地面攻擊Simulation results show that under the no attack situation the extracted watermark is very well
實驗模擬證明在無攻擊狀態下盲提取的水印效果好。But, though considerable process has been made in the last ten years, digital watermarking is still in its infancy, and much interesting work remains to be done this thesis addresses some problems in the gray - scale image digital watermarking that are summarized below : 1 ) whereas the basic theory of digital watermarking is still very poor, a digital watermarking mathematic model based on imperceptibility and robustness is presented by analysising the characteristic of digital watermarking ; 2 ) based on the model constructed above, by defining the measures of capacity and robustness of digital watermarking, an objective method for evaluating the digital watermarking is introduced and used to analysis some algorithms ; 3 ) whereas geometric distortion always influences the restoration of watermark, we advocate to enhance the robustness against geometric distortion by restoring the image which has been distorted by geometric transformation, and a method is designed for estimating the parameters of geometric transformation ; 4 ) based on the conclusion discussed above, and combined with the masking effects of hvs, a novel public meaningful gray - scale image digital watermarking is designed by analysising the characteristics of image gray - scale interpolation and haar wavelet transformation. the experimental results show that the method is indeed powerful ; 5 ) whereas many image digital watermarking schemes, which embed watermark by modifying the values of pixels in spatial domain and transformed domain, are confronted with the conflict between the imperceptibility and robustness, we advocated to use some stable digital characteristics of host image as watermark and a algorithm based on hermite matrix is designed
本文重點對灰度圖象數字水印技術進行研究,主要工作如下: 1 )鑒于目前數字水印的理論研究比較薄弱的現狀,本文通過分析數字水印的特點,建立了一個數字水印的數學模型,為進一步研究數字水印打下了基礎; 2 )根據以上建立的模型,通過引入容量和穩健度的概念為數字水印提供了一個客觀評價方法,並對一些數字水印演算法進行了分析; 3 )為增強數字水印抵抗幾何攻擊的能力,研究了受幾何攻擊的圖象的復原問題,並給出了一個計算圖象幾何變換參數的方法; 4 )通過分析圖象灰度插值演算法和haar小波變換的特點,結合hvs的掩蔽效應,設計了一個公開的有意義數字水印演算法,實驗結果表明本演算法具有較強的穩健性; 5 )目前許多水印演算法都是通過在空域或頻域修改象素值的方法嵌入水印的,這種方法面臨著透明性和穩健性的矛盾,為解決這個矛盾,本文提出以圖象的某些穩定的數字特徵為水印的觀點,並結合hermite矩陣的特點設計了相應的水印演算法,實驗結果表明該演算法具有較好的穩健性。And all words in every set can be classified into two types. then according to the different types of the words, the words in every set are embedded into two watermark groups in a specific watermark embedding way, and their contents are associated with embedded watermarks. so during watermarking detection, the action that the attacker deliberately distorts or modifies the watermarking feature by extracting watermarks consciously or not can be found easily, and the text integrity detection performance can also be enhanced
按此思路,對全文2字元以上的單詞將它們分為3個集合(即3層)並將之作為水印嵌入對象,而每層的所有單詞又區分為2類,對每層的單詞按一種水印嵌入方式嵌入2組(次)水印,而對單詞嵌入水印信息的時候根據其類別的不同以不同方法嵌入,使水印的嵌入與單詞內容相關,以利於水印檢測時能夠發現某些情況下攻擊者有意或無意地保留水印而對文本內容進行刻意篡改或者直接修改水印特徵的行為,以增強文本完整性檢測的性能。Introduction : winter to the weather in the lane best - eat barbecue about those fragrant flavor - milk flowed down the operation guide : use the mouse to click the choice of food, at the right time to pick up the increase seasoning
攻略:冬天到了在這樣的天氣里最好吃燒烤想想那香噴噴的味道口水都流下來了操作指南:使用鼠標點擊選擇食物,在適當的時機拿起加調料The research works of this article mainly include several aspects as follows : 1. wavelet analysis theories is researched, which include the first and the second generations of wavelet transformation, the basic concept, principle and algorithm, especially the multi - resolution of wavelet and the lifting scheme theory of the second - generation wavelet. the research contents about digital watermark are introduced systematically, and the general principle and universal model are summarized and the primary applied prospect is also pointed out
本文的研究工作主要包括以下幾個方面: 1 .研究了小波分析理論,包括第一代和第二代小波變換的基本概念,原理,演算法,特別是小波的多分辨分析和第二代小波的提升框架理論;系統地介紹了數字水印研究內容,總結了它的一般原理及通用模型,並指出了其主要應用前景,分析了數字水印的各種典型演算法、以及主要的攻擊方式。分享友人