首吃水 的英文怎麼說
中文拼音 [shǒujíshuǐ]
首吃水
英文
draft fore-
In the study of the lumber carrier, one of the very important problem is the in spot and ultimate station due to flooding which will bring tremendous threat to the ship because of the few holds in order to study the lumber carrier buoyancy, stability and longitudinal strength under the condition of flooding, the paper adopt fundamental ship principle and iterative and accumulative concept on the basis of insumersibility theory to detailedly calculate the flooding speed flooding amount front draft after draft stability and longitudinal strength considering the ship " s sinking and inclination which will change the center of gravity and the loading station both in hold and on deck and the effect of flooding and lumber amount in holdo in the last, the paper introduces an example of the actual ship named " fei yun ling " and makes a contrast between not taking measure and taking measure which draws a reasonable conclusion and comes up to some advice the method avoids the cockamamie calculating while insures enough precision the paper draws a conclusion that not all the lumber carrier will submerge when suffering the damaged flooding if the loading or measure is suitable
為了研究運木船舶在破艙狀態下的浮性、穩性和強度，本文在抗沉性理論的基礎上，運用船舶基本原理，採用了迭代和累計的思想，將船舶的進水過程劃分為很多次進水的積累，詳細計算了運木船在破艙進水的過程中，考慮到各種破艙參數、船舶本身的下沉、艙室內木材、甲板貨的裝載情況和在進水過程中船舶本身的傾斜對進水重心的影響，以及艙室內的進水量和木材對破口處進水速度的影響，船舶總的進水速度、進水量、首尾吃水、穩性的實時狀態和最終船舶的總縱強度，給出了計算實例，並進行了在採取用泵抽水前後浮態參數的對比，得出了該船舶在艙室內的貨物積載量達到某個數值時可以保證船舶在破艙進水時不會沉沒，或者在當開口小於某數值時，採取適當的措施后，可以使船舶避免沉沒。The calculated drafts covers the whole possible ship draft in the large amplitude motion ; secondly, the research creates and solves the ship large amplitude motion equations. on the one hand, the actual calculation takes into account the coupling between the different motion modes, on the other hand, in the process of calculation of the ship hydrodynamic coefficient, it considers the influence of the nonlinear factor. the hydrodynamic coefficient used in the calculation of froude - krylov force, diffraction force and radiation force changes instantaneously following the draft, and the hydrostatic buoyancy is computed very accurately for the instantaneous immerse hull
本文的研究分為二個部分：首先利用frank源匯法計算水動力系數，計算包括不同吃水時的附加質量和阻尼系數，吃水范圍涵蓋了船舶大幅度運動時所有可能的吃水；然後建立和求解船舶大幅度運動方程，在實際計算時一方面考慮了運動模態之間的耦合，另一方面在計算水動力時，考慮了非線性因素的影響。 froude - krylov力、輻射力、繞射力中的水動力系數隨吃水瞬時變化，靜浮力的計算精確到船體瞬時濕表面積，最後用四階龍格?庫塔方法在時域內求解船舶運動方程，並進行了載荷計算。The author considers the swaying disturbance ' s power for the first time when the draught of a ship is not equal to the height of gravitational center of the ship in analyzing exciting force affecting the performance of tank
在對影響水艙性能的擾動力的分析中，首次考慮了船舶吃水和重心高度不相等時，橫蕩干擾力所作的功。This vessel is a steel shallow draft flushing dredger of all - welded construction, with single deck, single bottom, transverse framing, transom stern and continuous superstructure, and sledge - shape bow. it is operating on the huanghe river for flushing and suctioning silt and sand with the purpose of controlling the huanghe river tongguan section, dredging the waterway and reducing the flooding. main engine : nt855 - m270
本船為鋼質全焊接結構淺吃水內河自航沖砂清淤工作船，具單甲板其中艉舵機艙首甲板為升高甲板，單底，橫骨架式結構，方艉及連續上層建築首部採用雪橇式線型。Last weekend, i ate out with my workmates, someone had sung a song named shui yinyuan, it is zhen tian ' s song. i think it is a very old song
22日那天，和同事們一起出去吃飯，有人點了一首歌，叫《水姻緣》 ，是田震唱的，在我的記憶里，這是一首非常老的歌。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。Ng, now a principal investigator and was involved in the investigation then, explained : " some drivers liked to work on routes closer to their residences so that their families could bring them meals during breaks. some wished to drive on routes around upmarket residential areas or commercial districts because of the refined passenger pools. the most sought - after routes were the cross - harbour - tunnel routes
曾經參與當年調查工作的首席調查主任吳炳國解釋：有些司機希望駕駛的路線鄰近自己的家，上下班方便，家人又可送飯送湯有些則喜歡行走高級住宅或商業區，因為乘客較為斯文有禮不過，最受歡迎是隧道巴士線，因為全部都是新車，行車時間短，還有半小時吃飯時間，較諸其他路線的司機只能在停站時才吃一口飯舒服得多而且更可賺超時補水。Those who understand such enclosures will think i had very little contrivance, when i pitch d upon a place very proper for all these, being a plain open piece of meadow - land, or savanna, as our people call it in the western collonies, which had two or three little drills of fresh water in it, and at one end was very woody
我孤身一人，要圈地修築籬笆無疑是一項巨大的工程，可這樣做又是絕對必要的。所以，我首先得找到一塊合適的地方，那兒既要有青草供山羊吃，又要有水供它們喝，並且還要有蔭涼的地方供它們歇息。Ice cream lovers can help fight global warming by seeking out ice creams flavoured with local berries, fruits and nuts, an italian farmers " group says. papaya ice may be nice, but it takes 5. 4 kg of oil - with the attendant co2 that releases into the atmosphere - to transport one kg 2. 2 lb of the fruit from argentina to rome, coldiretti said in a statement over the weekend
據路透社4月23日的報道，這家名為coldiretti的團體于上周末在其發表的一份聲明中指出，木瓜冰淇淋也許真的非常好吃，但要將1公斤2 . 2磅此種水果從阿根廷運到義大利首都羅馬來則需要消耗掉5 . 4公斤石油，與此同時，還會有大量的二氧化碳被排放到空氣中，而這種氣體已經被視為導致全球氣候變暖的主要罪魁禍首之一。分享友人