例句與造句

1. Major meteor stream
   主要流星群
2. 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
3. The duration of twilight , details of equinoxes , solstices , eclipses , information on calendar , observation of meteor streams and planetary phenomena as well as climatological " normals " of hong kong and some major cities for each month of the year are also given in this publication
   此外，年歷內(nèi)亦列出曙暮光的持續(xù)時(shí)間，以及春分、秋分、夏至、冬至、日食、月食、歷法、流星群及行星觀測(cè)等詳盡資料。
4. The numerical computation for the secular variable of the semi - major axis , solar distance at perihelion , orbital periods and longitude of perihelion has been made for fifteen meteor streams by using the solution of gylden - meshcherckii equations
   利用g - m型變質(zhì)量天體軌道根數(shù)變化方程的一階和二階解對(duì)15個(gè)流星群軌道半長(zhǎng)軸、近日點(diǎn)距離、軌道周期和近日點(diǎn)經(jīng)度因太陽(yáng)質(zhì)量損失造成的每世紀(jì)的長(zhǎng)期改變效應(yīng)做了數(shù)值計(jì)算，并得出計(jì)算結(jié)果。
5. The results show that the solar mass - loss extends the semi - major axis , the distance at perihelion and orbital periods of the meteor streams , especially , the extensive influence on the semi - major axis is not overlooked , but this influence on other orbital elements may be neglected
   其計(jì)算結(jié)果表明，太陽(yáng)質(zhì)量損失使流星群軌道半長(zhǎng)軸每世紀(jì)的改變效應(yīng)較明顯，它們同太陽(yáng)距離的擴(kuò)大影響值得關(guān)注，但對(duì)軌道周期的拉長(zhǎng)每世紀(jì)的影響甚小，對(duì)近日點(diǎn)經(jīng)度只有量級(jí)變化小到可以略而不計(jì)。
6. It's difficult to find meteor stream in a sentence. 用meteor stream造句挺難的