查询词典 U.S.S.

There are three copies of R fragment in the S mt-genome, and each copy contains two closely adjacent open reading frames: orf355 and orf77. Among these three copies two BamHI fragments were cloned, and the sequence analysis showed that cox1 and cox2 gene lies upstream of the R region in each fragment, respectively. However, they locate in different strands and head to head with R. In this study, we found that:(1) The expression of cox1 and cox2 is not affected by the transcription of R region;(2) The two copies of R region transcribe in large amount in the microspores, and produce transcripts of 1.6kb and 2.8kb, respectively, in the sterile microspores; However, the abundance of these two transcripts is reduced in the fertility restored microspores, realized through the mRNA decay, and this reduction occurs at the uninucleate microspore stage;(3) In the sterile microspores, the 5 terminus of the 1.6kb transcript contains a palindrome region that can fold into a stem-loop.

本研究发现：(1) cox1和cox2的转录没有受到R区转录的影响；(2)两个拷贝的R区在在不育花粉中高丰度表达，其转录本大小分别为1.6kb和2.8kb；而在育性恢复的花粉中，这两个转录本的丰度被大大降低，进一步分析表明这一结果是通过mRNA分子的降解途径来实现的，此降解过程发生在单核花粉期；(3)在不育花粉中，1.6kb转录本的5′末端具有一段可形成茎环结构的迴文对称序列，而在可育花粉中，其5′末端短缺了9个碱基；(4)在不育花粉和育性恢复的花粉中，R区转录本的加尾位点都集中位于一个3′茎环结构之后；(5)不管是在不育花粉还是育性恢复的花粉中，orf77区域内均在第52位和100位核苷酸处发生了不同频率的C向U的编辑，从而形成UGA终止密码；(6)不管是orf55-orf77的成熟转录本还是转录前体分子，都已被加上了Poly尾巴，表明已进入降解途径；在以上实验结果的基础上，本研究对S型CMS花粉育性的恢复机理进行了如下推测：在不育花粉和育性恢复的花粉中，orf77区域内均发生了终止编辑，即由RNA编辑产生了提前终止密码子。

Also Western Bug A river of western European U.S.S.R. rising in the southwest Ukraine and flowing about 772 km (480 mi) through Poland to the Vistula River near Warsaw.

也作 Western Bug 布格河：西欧的一条河流，位于苏联乌克兰西南部，全长772公里480英里），流径波兰流入华沙附近的维斯杜拉河

A city of southern Central Asian U.S.S.R. on the Chu River west-southwest of Alma-Ata.

伏龙芝苏联中亚南部一城市，位于阿拉木图西南偏西的楚河岸边。1846年建于''。

In American, Jazz, Rock and Roll, Western and country music are the main type of popular music. Jazz is considered the U.S' s unique contribution to music.

爵士乐，摇滚乐和西部乡村音乐是美国流行音乐的几种形式，爵士乐被认为是美国人对音乐的特别贡献。

We have a 54 percent chance of wiping out the entire U.S.S.

我们有54%的几率在苏军的导弹击中目标之前。。。

The video frequency exhibition set is in with the projector match the environment of usage, in common use is various situation in the training, television meeting, colloquium of the education teaching's etc., can play to show a document, slide, merchandise, zero partses, 3D object etc.s.

4 u； K0 i4 e* a0 {+ \# N 视频展台在与投影机搭配使用的环境中，常用于教育教学培训、电视会议、讨论会等各种场合，可演示文件、幻灯片、商品、零部件、三维物体等。

U.S.S. Atka stands off Crater Hill on McMurdo Sound in mid-March; she kept channels open for evacuation of the last summer residents.

美国轮船Atka号远离火山口小山在南极的麦克默多海峡3月中期；她保持通道的开放因为疏散去年夏季的居民。

U.S.S. Atka stands off Crater Hill on McMurdo Sound in mid-March; she kept channels open for evacuation of the last summer residents.

美国参议员Atka号破冰船远离火山口小山在麦克默多海峡在三月的中间；她保持通道对撤离最后的夏天居民开放。

And never before were there networks that tailored15 their broadcasts as platforms for American righteousness (Fox News Channel16, most bombastically) or the U.S.'s tactical and moral fallibility (al Jazeera17 and al Arabia).

也从来没有这样的新闻网络按特殊需要把新闻广播当作宣讲美国正义(最夸张的是福克斯新闻台)、讨论美国的战术和道德错误的论坛(如半岛电视台和阿拉伯电视台)。

Therefore, above-mentioned age dating together with previous chronologic data led us to conclude that the Sulu HP-UHP nappes have two basements: the Early-Middle Protrozoic (≥2400 Ma) basement in the N. Sulu and the Neoprotrozoic (700-800 Ma) basement in the S. Sulu. The basement ages in the N. Sulu together with its western part of the no-UHP metamorphic area (Laiyang-Penglai) are similar and named by the Jiao-Liao-Korea block belong to the NCP. Besides, the boundary between both of the S. Sulu UHP area and JLKB is along north Wulian and south Haiyangsuo.

北苏鲁超高压变质地区的花岗质片麻岩锆石SHRIMP U-Pb定年表明，变质基底的年龄是2400Ma（或＞2400Ma），并经历了1800～1700Ma和～200Ma的变质事件，研究表明苏鲁高压－超高压变质地体由2个不同时代变质基底组成，北苏鲁的变质基底属于北中国板块胶辽朝地块的一部分，形成时代比南苏鲁基底老得多，其与南苏鲁地块之间的界限位于五莲以北到海阳所以南一线。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。