thrust of earth 中文意思是什麼
thrust of earth
解釋
土推力-
The complex nonlinear pursuit - evasion model of two spacecraft in near - earth coplanar orbit is simplified to linear model, the circular region the radius of which is equal to capture radius is defined as target set, capture is achieved when the evader come into the target set and the game is over ; the boundary of useable part ( bup ) is determined, and the analytical form solution of the linear equations is obtained by backward integration of the state variables from the bup, the linear barrier of the pursuit - evasion model and the optimum thrust of the both sides are thus obtained
本文將近地共面軌道內運動的兩飛行器非線性追逃模型簡化為線性模型，以捕獲半徑的圓域定為目標集，確定目標集邊界上的可用部分，並以此為各狀態變量的起點，對時間進行倒向積分，求得線性方程組的解析解，從而確定了該追逃模型的線性界柵，以及界柵上對策雙方的最優推力，即求得了滿足最優策略時相對運動的軌跡和推力。 -
Owing to complicated earth ' s surface condition such as the steep stratum outcropping of front - zone of mountain or the huge thick gravel stratum ' s overlay and earth ' s surface large undulation, complicated underground geology structure developed extremely such as thrust and overthrust nappe, and violent change of the lateral velocity, etc. in front - zone of mountain there are a series of problems such as serious secondary disturbance and low signal - to - noise ratio in seismic exploration gathering
由於山前帶高陡巖層出露或巨厚礫石層的覆蓋、地表起伏大等復雜的地表條件、逆沖和逆掩推覆等復雜地下地質構造發育、速度橫向變化劇烈等原因，造成了山前帶地震勘探資料採集存在次生干擾嚴重和信噪比低等一系列問題。 -
An old man, who was digging busily at one of the beds, stuck his spade in the earth, and approached, cap in hand, striving to conceal a quid of tobacco he had just thrust into his cheek
一個正在玫瑰花叢中忙於翻地的老頭把他的鏟子往泥土裡一插，拿起帽子走了過來，一邊走，一邊極力想掩飾剛才扔進嘴裏的那塊煙草。 -
A long, young hound, not one of the rostovsnikolay did not recognise himflew from in front straight at the wolf, and almost knocked him over. the wolf got up again with a surprising rapidity and flew at the young hound ; his teeth clacked, and the hound, covered with blood from a gash in his side, thrust its head in the earth, squealing shrilly
那隻狼出乎意料疾速地抬起身子，向黑褐色的公犬撲過去，咬了它一口，牙碰得磕磕地響了一下，公犬的肋部給狼撕開了，身上鮮血淋漓，發出尖聲的慘叫，倒了下來，將頭埋入土裡了。 -
After the first stage burns out, it falls back to earth along a parabolic path, while the engines of the second stage fire to thrust the rocket into an earth orbit
當第一級燒毀后，沿拋物線的軌道落到地球，而第二級的發動機點火把火箭發射到地球軌道。 -
At liftoff, the three clustered boosters generate two million pounds of thrust. the rocket can place about 50, 000 pounds into earth orbit
這三個串聯的推進器總共產生2百萬磅推進力。因而該火箭將用來部署5萬磅重量的有效載荷到地球軌道中。
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