查询词典 The Eel

Compared the similarity and difference of distribution of homologous fragments on X and Y, we suggested that the sex chromosomes of spiny eel have evolved from a pair of homologous ancestral chromosomes, and during the evolution, a pericentric inversion might have occurred on the original Y chromosome, and subsequently terminal regional duplication might have followed, eventually resulting in the differentiation and formation of X and Y chromosomes, then the recombinants between sex chromosomes were repressed, so the sex chromosomes could be inherited steadily.

根据X、Y染色体上同源片段的分布的相似和相异，我们对刺鳅性染色体的分化历程进行了推测，即：刺鳅的性染色体起源于一对原始的同源染色体，通过原Y染色体上的一个明显的臂间倒位，以及染色体末端的异染色质成分的扩增，导致原始Y染色体与X染色体在染色体结构上的分化，从而抑制了X、Y性染色体之间的遗传物质的重组交换，为性染色体的稳定遗传奠定了基础。

Amongst the most popular were the fish carved and incised under the glaze of the classic Northern Song Ding wares, such as that carved in the interior of the large basin in the Percival David Foundation,23 and moulded on Northern Song or Jin dynasty Ding wares such as the dish with paired fish and lotus in the Idemitsu Art Museum, Tokyo.24 Fish also appear on popular wares such as the 12th century Cizhou wares with sgraffiato decoration, as seen on the famous pillow with catfish and eel grass in the Yamato Bunkakan Museum, Nara.25 They can also be seen on Southern Song celadon-glazed wares from the Longquan kilns, usually in the form of a pair of sprig moulded fish applied in relief under the glaze, as on a dish in the Percival David Foundation.26

最盛行的是著名的北宋定窑明刻和釉下暗刻鱼纹，诸如大卫珀西瓦尔基金会收藏的内底心雕刻的大盆，以及东京 Idemitsu 艺术博物馆馆藏的北宋或金代定窑盘子上的双鱼莲花造型。12世纪磁州窑的瓷器上也带有鱼的纹饰，正像在那件在奈良大和 Bunkakan 博物馆馆藏的著名的鲶鱼和蛇形鱼草瓷枕上所见到的那样。在南宋龙泉窑青釉瓷器上也同样可以见到鱼纹，通常是一对儿小枝造型的鱼以釉下暗刻浮雕的形式出现，正如大卫珀西瓦尔基金会一件盘子上所见到的那样。

Go to the new stone age, live in the pond of , Eel Lake nearby people, have already can use a simple implements of production of the stone ax, be engaged in the agriculture production of the originality, some persons of place will still construct the simple wood structure building, and become the bigger small village gradually.

到新石器时代，居住在滇池、洱海附近的人们，已能使用石斧之类简单的生产工具，从事原始的农业生产，有些地方的人还会建造简易木结构房，并逐渐形成较大的村落。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。