circular orbit 中文意思是什麼
circular orbit
解釋
環形軌道-
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。 -
We have already worked out the conditions for a circular orbit.
我們已經算出了圓軌道的條件。 -
Then, the chaser ' s two orbit roots are selected as variable and visualizing the simulation by contour plot. this part of research draws the conclusion the same as the first part when the target ' s orbit is circular orbit, while the selected two variable can be wildly changed if the target ' s orbit is elliptical orbit. next, wait time before orbit maneuver is simulated
其次，利用可視化的等值線圖研究了追蹤器軌道兩個參數為變量的情況下大范圍軌道機動問題，分析表明對圓軌道目標器交會機動時，追蹤器軌道根數不宜與目標器軌道根數相差過大，而對橢圓軌道目標器交會機動時，追蹤器軌道根數可選范圍較大，機動策略和方法富於彈性。 -
2. based on the spaceborne sar theory, an elliptical earth model and an elliptical orbit model are proposed, which have some advantages over the traditional circular ones
2 .基於星載sar的基本理論，給出了一種進行星載sar回波信號模擬的橢圓地球模型和橢圓軌道模型，它們優于傳統的球地球模型和圓軌道模型。 -
An ocean wave passing through deep water causes a particle on the surface to move in a roughly circular orbit, drawing the particle first towards the advancing wave, then up into the wave, then forward with it and then ? as the wave leaves the particles behind ? back to its starting point again
穿過深水的海浪使水面上的一個微粒按照一種近乎圓形的軌道移動，先把微粒拉向前移動的海浪，然後推上波浪，隨著波浪移動，然後? ?當波浪把微粒留在身後時? ?又回到出發點。 -
As another example the center of mass of the earth and moon moves in an approximately circular orbit around the sun.
作為另一個例子，地球和月亮的質心就是在一個繞太陽的近似的圓軌道上運行。 -
Shenzhou - 5 flew in a circular orbit 343 kilometres above the earth
神舟五號飛船在距地球343公里的圓形軌道上飛行。 -
Before it can return any science, though, it will take six - months to adjust its extremely elongated 35 - hour long orbit to a circular one two - hours long using atmospheric friction
然而在它發送回任何科學資料前，飛船大概需要6個月時間利用大氣摩擦將伸長的35小時軌道調整為一兩小時的圓形軌道 -
Nearly circular orbit
近圓軌道 -
In 2003, 《 concerning strengthen the city fast orbit transportation constucted the management of circular 》 spirit, draw up 《 shenyang fast orbit transportation construction programming 》 and report the national development reform committee, the chinese international engineering consultation company passes in october 2003 ; constuct a first step commentary to examine to pass in march 2004
2003年，沈陽按照國務院辦公廳《關于加強城市快速軌道交通建設管理的通知》精神，編制了《沈陽市快速軌道交通建設規劃》並上報國家發改委， 10月通過中咨公司評審， 2004年3月通過建設部初步審查。 -
Besides, by reason of its long distance from jupiter, the earth can maintain a rather circular orbit. also the gravitation of the moon can stabilize the tilt of the rotational axis of the earth, thus restricting climatic fluctuation within a narrow range
另外，地球因與木星保持距離，能維持著一個幾近圓形的軌道，加上月球的引力穩定了地球自轉軸傾斜的角度 -
On the holonomy invariance of a circular orbit in the nut - taub - like spacetime
時空中圓形軌道完整不變性的研究 -
Intermediate circular orbit
中間圓軌道 -
The engine operated for 63 seconds. the elliptical orbit was changed to a near circular orbit
飛船變軌，變軌發動機工作了63秒，使原來的橢圓形接近圓形。 -
Orbit adjustment began. the engine operated for 63 seconds. the elliptical orbit was changed to a near circular orbit
飛船變軌，變軌發動機工作了63秒，使原來的橢圓形接近圓形。 -
Something of circular form ; a circle or an orbit
圓形物體圓形物體；圓圈或環形軌道
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