船首向著 的英文怎麼說
中文拼音 [chuánshǒuxiàngzhāo]
船首向著
英文
keehead to-
China ' s first astronaut yang liwei walked out of the re - entry capsule of the shenzhou 5 spaceship, smiling and waving to the recovery team in the grasslands in gobi desert, inner mongolia
「神舟」五號航天飛船在內蒙古草原順利著陸，中國首位宇航員楊利偉面帶微笑走出返回艙，並向搜救人員揮手致意。In general, the upward amplitude curve " curvature is larger, and it changes quicker. on the contrary, the downward is smaller and slower ; because the flare force contains the square of the wave elevation velocity, it results in an difference between the flare force frequence and the associated moving frequence ; the flare force decreases the downward amplitude of heaving oscillations ; the speed of ship has an ignorant effect on the peak values of three calculated values, but there is an obvious effect on the oscillating frequence ; the wave amplitude has an effect on the ship motion, and there is an linear relation between the oscillating amplitude and the wave amplitude on the whole. by the way, there are some experiences and lessons according to the progress calculation : before the calculation of the ship motion, we should checkout the balance in a calm water firstly, namely, the whole displace of ship and the longitudinal position of the center of gravity must be consistent with the draft in calm water, or else, the calculation may show the " floating " phenomenon ; the mixed language programming has a lot of virtues, but it exists a fatal limitation - the debug of dll
研究表明：在某些頻率范圍內相關水動力系數基本不隨吃水變化，只有超過某一頻率后水動力系數的值才會出現差異；在橫搖方向，水動力系數並沒有隨著吃水的變化發生規則變化，而是出現了波動現象；近船首剖面的水動力系數計算表明，水動力系數的波動非常大，並遠遠偏離了平均位置的水動力系數值，值的變化速率也不盡相同，總的看來，上振幅曲線曲率較大，變化較快，下振幅曲線曲率較小，變化較慢；外飄力和波面運動的速度的平方項有關，導致其振動頻率和相應運動方向的頻率不同；外飄力使升沉向下運動的幅值減小；船速對三個計算量的峰值影響甚微，但對振動頻率有明顯影響；波幅對船舶運動的影響是明顯的，船舶運動的幅值基本上和波幅成線性關系。The crews raced for the beach ; but the boat i was in, having some start, and being at once the lighter and the better manned, shot far ahead of her consort, and the bow had struck among the shoreside trees, and i had caught a branch at swung myself out, and plunged into the nearest thicket, while silver and the rest were still a hundred yards behind
水手們競先向岸劃去，但是我乘的劃子，由於起劃略早，舟身較輕，配備的槳手好一些，遠遠地劃在它的同伴的前頭，船首一頭插在岸上的樹叢里，於是我一把拽住根枝條，蕩了出去，接著便鉆進了最近的灌木叢，這時西爾弗和其餘的人還在身後一百碼的地方哩。In addition, based on the expert system theory, and the ship intelligent collision avoidance expert system, the frame of multi - ship collision avoidance expert simulation system is built. finally, at the foundation visual basic 6. 0 combined with matlab 6. 0, a software of multi - ship collision avoidance expert simulation system is designed. it should be noted that this software can give out the project, the opportune moment, the extent of veer and the reversion of course, complete the auto - simulation of multi - ship collision avoidance
在系統的研究過程中，首先對船舶避碰領域知識進行分析；然後用層次分析法實現了多船會遇避碰決策，並且在碰撞危險度的基礎上實現了行動時機、避碰方案與轉向幅度的計算；接著根據專家系統理論，在船舶智能避碰專家系統的基礎上構建了多船會遇的避碰專家系統的框架；最後，以visualbasic6 . 0作為軟體開發平臺，並結合matlab6 . 0軟體，設計了一種具有良好可視化人機界面的多船會遇避碰模擬專家系統軟體。分享友人