Firstly, This paper processes geometry filtration based on character of orbit's apogee and perigee after orbit model is analyzed and based. Secondly Space Debris is separated into two kinds, coplanar and not coplanar according as location interrelation of target and debris. In Dynamic filtration's processing, considering prediction time limit and orbit perturbation, secular effects which have increaser effect is considered so that some need catching danger time point is appeased, some law about time when target and debris pass intersectant line each other is inferred, when debris and object are in different plane and some similar law also is inferred otherwise. The time list is arithmetical progression. These laws can improve calculation efficiency remarkably; Lastly orbit predict is a course approaching least distance. Danger time point in the last step become beginning time point from which debris and object's position and velocity are calculated by SXP4 Model which is an analytic model.By result, determine that relative movement trend is closer or apart, farther calculate the interval apart from time when predictive least relative distance occurs. Least relative distance and time when least distance occurs is calculated finally. It is a fast approach course adopting varied interval.

本文在分析黄色一级国产视频、建立軌道攝動(dòng)計(jì)算模型的基礎(chǔ)上99色综合精品视频，首先采用基于軌道遠(yuǎn)免费日韩黄色片品尚网、近地點(diǎn)特征對(duì)大量編目在冊(cè)的空間碎片進(jìn)行初步幾何靜態(tài)篩選黄色网址A片免费观看，然后根據(jù)碎片與目標(biāo)軌道面的相對(duì)位置特點(diǎn)把碎片分為異面與準(zhǔn)共面兩種情況以進(jìn)行動(dòng)態(tài)篩選99re5久久在热线播放，在篩選過程中考慮到預(yù)報(bào)時(shí)限長(zhǎng)度和軌道攝動(dòng)影響深夜福利网站，引入了軌道攝動(dòng)中具有積累效應(yīng)的長(zhǎng)期項(xiàng)以滿足危險(xiǎn)時(shí)間點(diǎn)的捕捉要求，利用了長(zhǎng)期項(xiàng)攝動(dòng)變化線性的特點(diǎn)導(dǎo)出了碎片與目標(biāo)異面情況下各自過交線的時(shí)間序列成準(zhǔn)等差數(shù)列的規(guī)律性和準(zhǔn)共面情況下類似的規(guī)律性中国农村特级黄色视频，從而顯著地提高了前期軌道篩選的計(jì)算效率五月婷婷丁香网；最后對(duì)剩余危險(xiǎn)碎片和目標(biāo)飛行器利用SXP4軌道預(yù)報(bào)模型在前期軌道篩選的基礎(chǔ)上以各個(gè)危險(xiǎn)探測(cè)時(shí)間點(diǎn)為預(yù)報(bào)的時(shí)間起點(diǎn)，并根據(jù)預(yù)報(bào)計(jì)算結(jié)果最新最大最全偷拍二区，分析目標(biāo)和碎片在該時(shí)間點(diǎn)的運(yùn)動(dòng)趨勢(shì)是相互遠(yuǎn)離還是相互接近999免费国产，推出預(yù)計(jì)最小相對(duì)距離發(fā)生時(shí)刻相對(duì)此刻的時(shí)間長(zhǎng)度，得到其隨時(shí)間變化的局部最小相對(duì)距離以及危險(xiǎn)距離發(fā)生的時(shí)刻和相對(duì)速度强奸视频网站在线观看高清无码，這是一個(gè)采用變時(shí)間步長(zhǎng)最新偷窥盗摄wang网、快速逼近最小相對(duì)距離的過程。

The correlation among all these parameters of four different types of wear debris is conducted. In the analysis of surface texture, the maximum and minimum brightness point in texture normal line is examined firstly. Then, the differences among some typical wear particles are analyzed through analyzing the texture gray level co-occurrence Matrix, color principal component analysis of the wear particle and the direction of wear particle outline.

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When the ground was harrowed, glass and other debris would surface; a contemporary observer, John Orchard, later remembered:"they'd line up a whole group of people, perhaps thirty or forty players, and we'd go along with a container alongside each other and we'd pick up everything that was likely to hurt a player."

翻過地后，碎玻璃和瓦礫露在地上在线看自拍；當(dāng)代觀察家約翰·奧查德后來回憶：&他們站成一排www.色一区二区，大約三四十個(gè)運(yùn)動(dòng)員，我們一個(gè)挨一個(gè)一级黄色视频无码，手拿一個(gè)箱子向前走狼狼综合久久久久综合网，把凡是可能傷害到運(yùn)動(dòng)員的東西都撿起來。&

Fast Blurs Line：現(xiàn)行朦朧點(diǎn)

? Stars 漫天繁星 | ? Fast Blurs Line 現(xiàn)行朦朧點(diǎn) | ? Threads and Debris Area 線點(diǎn)結(jié)合區(qū)域

OUTLET LINE VIBRATES：出口管線振動(dòng)

. Debris in the Valves 閥門碎片 | OUTLET LINE VIBRATES: 出口管線振動(dòng) | . Air in the System 系統(tǒng)中的空氣