河

Mosasaurs breathed air and were powerful swimmers that were well-adapted to living in the warm, shallow epicontinental seas prevalent during the Late Cretaceous Period.

默兹河蜥必须呼唤空气生存，白垩纪后期浅浅的陆缘海随处可见，默兹河蜥已经很好地适应了这种环境，成为十分强劲的游泳能手。

After analysis and study of characters of observational parameters of these extragalactic H2O megamaser sources, the correlations among them have been obtained as follows: lg S peak is anticorrelated with lg V sys and lg D , respectively.

通过对这些河外H2O超脉泽源的观测参数的特征的分析和研究，得到这些观测参数之间的相关关系为：河外H2O超脉泽源的峰值流量密度的对数分别与系统速度的对数和距离的对数之间存在着反相关关系。

The luminosity of the most of extraglactic H2O megamaser sources is between tens and hundreds L ⊙, but one of the extragalactic H2O megamaser source TXFS 2226-184 is 6100 L ⊙. It belongs to the class of radio galaxy and is not general. It is mainly caused by its wide spectral profile.

多数河外H2O超脉泽源的光度在几十至几百个 L ⊙之内，但TXFS2226－184源的河外H2O超脉泽源的光度达6100 L ⊙，它属于射电星系类型，是主要由于其谱线轮廓较宽所造成的一种例外情况。

Observing the extragalactic radio sources in both radio and optical wavebands is the important method to construct the relationship between radio and optical reference system. Since the precision of radio positions of radio sources is better than lmas, determination of optical positions of radio sources is the key step.

实现射电与光学参考系连接的一个重要手段是在两个波段观测河外射电源，由于射电源的射电定位精度已达亚毫角秒，因此河外射电源的精确光学定位是关键。

Since the first extragalactic H2O megamaser source toward the Active Galactic Nuclei NGC 4945 was discovered, 19 sources have been found.

自从在活动星系核NGC 4945的视线方向上发现第一个河外H2O超脉泽源以来，迄今为止已发现了19个河外H2O超脉泽源。

Danfengchang formation Xujiahe reservoir thickness is 460-500m, the lithological character is feldspathic lithic quartzite sandstone, feldspathic quartzite sandstone and lithic quartzite sandstone in the formation of Xujiahe.

丹凤场构造须家河组地层厚度为460-500m，须家河组储层岩性主要为长石岩屑石英砂岩、长石石英砂岩和岩屑石英砂岩。

Ganges tributary of Yamuna flowing slowly from the east, across the river is the vast Gangetic plain.

恒河支流亚穆纳河从城东缓缓流过，河对岸是广阔的恒河平原。

A Niagara , Genesee, Oswego, into Blake and Trent River, Welland connecting Lake Erie and the River.

有尼亚加拉、杰纳西、奥斯威戈、布莱克和特伦特河注入，经韦兰运河和尼亚加拉河与伊利湖连接。

A Niagara, Genesee, Oswego, into Blake and Trent River, Welland connecting Lake Erie and the Niagara River.

有尼亚加拉、杰纳西、奥斯威戈、布莱克和特伦特河注入，经韦兰运河和尼亚加拉河与伊利湖连接。

"Hohokam culture ,Complex of North American Indian peoples who lived c. 300 BC-AD 1400 in the Sonoran Desert (Arizona, U.S.), especially along the Gila and Salt rivers ."

&霍霍坎文化，公元前300年～公元1400年的北美印第安人文化，他们生活于今亚利桑那州的索诺兰沙漠地区，主要是沿希拉河和索尔特河一带。&

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。