elliptical orbit造句
例句與造句
- The sun , for example , takes about 230 million years to go around its elliptical orbit
例如，太陽(yáng)走完橢圓軌道一周約需2億3000萬(wàn)年。 - The engine operated for 63 seconds . the elliptical orbit was changed to a near circular orbit
飛船變軌，變軌發(fā)動(dòng)機(jī)工作了63秒，使原來(lái)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(fā)動(dòng)機(jī)工作了63秒，使原來(lái)的橢圓形接近圓形。 - If the satellite has an elliptical orbit , the result is a spiral wave , a miniature version of the pinwheel pattern of our galaxy
如果衛(wèi)星的軌道是橢圓的，就會(huì)產(chǎn)生螺旋波，就像是銀河系紙風(fēng)車形狀的縮影。 - A regional satellite navigation system which is made up of geosynchronous satellites and synchronous satellites with elliptical orbit is proposed
摘要提出了一種用靜止衛(wèi)星和同步橢圓軌道衛(wèi)星構(gòu)造的區(qū)域衛(wèi)星定位系統(tǒng)。 - It's difficult to find elliptical orbit in a sentence. 用elliptical orbit造句挺難的
- This planet , unlike the other planets in our solar system , has an elliptical orbit and moves clockwise rather than counterclockwise
這顆行星，不同在我們太陽(yáng)系的其他行量，是橢圓形軌道，順時(shí)針?lè)较蛞苿?dòng)，而不是逆時(shí)針。 - A elliptical orbit may occur if the small body has an high velocity when close to the large body , and a very slow velocity when far from the large body
如果小的天體離大天體很近時(shí)以很高的速度飛行的，較遠(yuǎn)時(shí)以很慢的速度飛行，就形成一個(gè)橢圓的軌道。 - Most of the meteoroids of the leonid meteor stream concentrate in an elongated thin ribbon - like region . the stream orbits around the sun in an elliptical orbit with a period of about 33 years
獅子座流星群聚集于一條狹長(zhǎng)的區(qū)域內(nèi)，以極為橢圓形的軌道環(huán)繞太陽(yáng)運(yùn)行，周期約為 - 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 .基于星載sar的基本理論,給出了一種進(jìn)行星載sar回波信號(hào)模擬的橢圓地球模型和橢圓軌道模型,它們優(yōu)于傳統(tǒng)的球地球模型和圓軌道模型。 - Chapter 3 proposed a constellation scheme for a regional satellite navigation system . the constellation is consist of geosynchronous satellites and synchronous satellites with elliptical orbit
第三章在分析了適用于構(gòu)造區(qū)域衛(wèi)星定位系統(tǒng)的衛(wèi)星軌道類型后,提出了利用靜止衛(wèi)星和同步橢圓軌道衛(wèi)星構(gòu)造星座的方案。 - They are available for viewing at over the next seven months , the orbiter will " aerobrake , " dipping into mars " atmosphere and gradually changing its elliptical orbit into a near - circle about 185 miles above the planet ' s surface
在以后的7個(gè)月內(nèi)， mro將緩慢沉入火星大氣層，并漸漸由橢圓形軌道過(guò)渡到距火星表面約185英里300公里的近圓軌道。 - 2 . to simulate accurate raw data of spaceborne sar , models of satellite with elliptical orbit and targets with rotation of the earth are adopted in the process of calculating between the satellite platform and target
為了模擬得到精確的星載sar原始數(shù)據(jù)，本文在計(jì)算各時(shí)刻星載sar平臺(tái)與目標(biāo)的距離時(shí)，采用了精確的數(shù)學(xué)模型：其中星載sar平臺(tái)運(yùn)動(dòng)軌跡采用橢圓軌道模型，地球采用橢球體模型。 - Since the elliptical orbits of the moon and the earth and the tilt of the earth s rotation axis also affect the forces exerted by the moon and the sun on the earth , the highest and lowest sea levels associated with spring tide are different from month to month
此外，由于月球運(yùn)行及地球公轉(zhuǎn)的軌道呈橢圓形，及地球自轉(zhuǎn)軸傾斜的影響，令月球和太陽(yáng)的引力出現(xiàn)變化，因此，每月的大潮所引致的水位變化亦有所不同。 - 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(gè)參數(shù)為變量的情況下大范圍軌道機(jī)動(dòng)問(wèn)題,分析表明對(duì)圓軌道目標(biāo)器交會(huì)機(jī)動(dòng)時(shí),追蹤器軌道根數(shù)不宜與目標(biāo)器軌道根數(shù)相差過(guò)大,而對(duì)橢圓軌道目標(biāo)器交會(huì)機(jī)動(dòng)時(shí),追蹤器軌道根數(shù)可選范圍較大,機(jī)動(dòng)策略和方法富于彈性。