grand design spiral

Inclination-Dependent Luminosity Function of Spiral Galaxies and the Statistic Analysis for Dust Extinction;

旋渦星系光度函數與傾角的關系及塵埃消光的統計分析

The formation and evolution of disks are important for the formation and evolution of spiral galaxies, for disks are important components of the galaxies and the most baryons are in disks.

在旋渦星系形成和演化的過程中，星系盤的形成和演化是關鍵，因為盤是星系的主要成份，大部分的重子物質都包含在星系的盤中。

The color gradient of spiral galaxy freezes its fossil information of the star formation history along the disk and therefore provides a strong constraint on the models of disk formation and evolution.

旋渦星系的顏色梯度反映了其星族構成沿徑向的分布,包含了星系恒星形成歷史的信息。

Therefore,our Milky Way should be morphologically catalogued as a barred spiral galaxy instead of a normal spiral one.

最近十幾年來,銀河系已被確認為是一個棒旋星系,而不是無棒結構的普通旋渦星系。

The Color-Magnitude Relation of Late-Type Galaxies and their Disks

晚型旋渦星系及其盤的顏色星等關系

Spiral galaxies are considered to be gravitationally bound configurations of stars.

旋渦星系被認為是由恒星組成的引力束縛系統。

But almost all spiral galaxies are much older than2 billion years.

但是幾乎所有旋渦星系的年齡都超過了20億年。

There is a curious feature in the spectra of spiral galaxies.

在旋渦星系的光譜中有一種奇妙的特征。

Smaller groups of stars called globular clusters often surround spiral galaxies.

稱作球狀星團的小型恒星團體經常環繞在旋渦星系周圍。

Inclination-Dependent Luminosity Function of Spiral Galaxies and the Statistic Analysis for Dust Extinction;

旋渦星系光度函數與傾角的關系及塵埃消光的統計分析

The mystery arises when one considers how a spiral galaxy rotates.

當人們考慮旋渦星系是如何轉動的時候難題就來了。

The story begins with a local eddy in the swirling gas and dust of the primordial galaxy.

話題要從原始星系的旋渦氣體和塵埃形成的一個局部渦流說起。

The spiral nebulae are impressive objects.

旋渦星云是迷人的天體。

This flat circular disk is our own Galaxy, the Milky Way, with its spiral structure.

這個圓盤就是我們的星系，銀河系，帶著旋渦的結構。

The Research for New Scroll Profile and Dynamics of Scroll Compressor;

渦旋壓縮機渦旋新型線及系統動力學研究

Clouds of stars and glowing gas, with patches of darkening dust, mark the slow-changing spiral patterns of the Galaxy disk.

點綴著暗淡塵埃的團團恒星和發光星云，標記著銀河系緩慢變化的旋渦外形。

A vortex, as of a whirlwind or whirlpool.

渦流，如旋風或旋渦的

EDDY STRUCTURE IN SOUTH CHINA SEA FROM SATELLITE?TRACKED SURFACE DRIFTING BUOYS AND SATELLITE?REMOTE SENSING SEA SURFACE HEIGHT

衛星跟蹤浮標和衛星遙感海面高度中的南海渦旋結構

Good spectra of the spiral nebulas are difficult to obtain because of their extreme faintness.

旋渦星云因為非常暗，難以得到它們的清晰的光譜。

THE INFLUENCE OF EDDY VISCOSITY ON THE SUBTROPICAL PLANETARY-SCALE CIRCULATION IN SUMMER

渦旋粘性對于夏季副熱帶準定常行星尺度環流的影響

Vortex injection provides a form of swirl or cyclone combustion for a rocket engine similar to systems often employed in industrial furnaces.

渦流噴射在火箭發動機中產生一種渦流或旋渦形式的燃燒，與工業爐中常采用的系統相似。

Field test of operating characteristics of DVM systems in winter

數碼渦旋多聯式空調系統冬季運行特性實測