定向类
- 与 定向类 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
This kind of sponsor will change own advertizing budget by the local newspaper the directing high handset advertisement.
这类广告客户将把自己的广告预算由本地报纸转向定向性较高的手机广告。
-
To better understand the roles of LsrA protein in nodulation, a series of analyses of nodules using scanning electron microscopy, genetic and biochemical approaches have been carried out. Our analyses suggest that the lsrA1 nodules contain bacteroids in the invasion and establishing zone only. The lsrA gene expression is active early in the invasion zone and activated later than bacA genes. The lost of LsrA protein dramatically reduced the expression of nifA and fixK, and completely blocked the expression of the nifH gene for nitrogenase. LsrA protein functions early in the bacteroid development and it is essential for the development nitrogen fixing bacteroids.
前期的工作中,苜蓿中华根瘤菌Rm1021中90个候选LysR基因已经被定向插入突变,并筛选在自生生长时期、共生生长时期的表型,以期寻找更多在自生状态或共生固氮中有功能的LysR转录因子。1 针对前期鉴定出的共生固氮必需的lsrA基因,我们应用了一系列扫描电子显微镜技术、生物化学、分子遗传学等方法,发现lsrA基因主要在根瘤侵染区开始表达,表达时序也在侵染阶段左右,但晚于bacA基因表达;LsrA蛋白缺失后根瘤固氮区中缺乏具有固氮能力的类菌体,nifA和fixK基因的转录水平降低,nifH基因的转录被完全阻断,因此LsrA蛋白为根瘤发育所必需,是新的根瘤发育信号传导途径成员。2 通过表型筛选我们鉴定了苜蓿中华根瘤菌的oxyR基因,并研究了它的调节特性。oxyR突变后,苜蓿中华根瘤菌对过氧化氢敏感性提高,适应性降低。
-
A nonorientable map with one vertex and one face is called a barfly.
魔本文的中心是讨论不可定向地图的初等等价类。
-
Perpendicular search engine is to pour pyramid model, be pair of trade news comb, rework and editor are arranged, it is the professional search engine that is aimed at certain industry, the fractionize that is search engine and outspread, it is right some kind of technical information in webpage library undertakes conformity, directional cent field is draw-out the user is returned with some kind of form again after the data that gives need undertakes handling.
垂直搜索引擎是倒金字塔型,是对行业信息的梳理、再加工与编辑整理,是针对某一个行业的专业搜索引擎,是搜索引擎的细分和延伸,是对网页库中的某类专门的信息进行一次整合,定向分字段抽取出需要的数据进行处理后再以某种形式返回给用户。
-
The study suggest:(1) The observation of satellites in root tip and multiplex PCR makers could accurately identify the homozygous and the heterozygosis of 1BL/1RS translocation.(2) Through the restoring degree we could confirm the success of the transfer. The combination of the restoring degree and the agronomy property could increase the efficiency of practical application.(3) This study proposed the transformation from the physiological male sterile to the genetic male sterile, and then establish a method of utilize the strong superiority crosses.
其中复合引物PCR更适合于回交后代中大量目标种子的筛选;(2)恢复基因转育后代定株与不育系测交,依据测交恢复度可准确确定恢复基因在回交后代的延续,恢复基因定株定向转育与性状选择结合可大大提高转育后代的实际应用效果;(3)本研究提出的粘类小麦雄性不育恢复基因Rfv1定向转育体系,可有效地实现小麦由化控强优势组合向三系强优势组合的定向转化,即生理型不育途径向遗传型不育途径的定向转化,进而建拓一套杂交小麦强优势组合多途径利用新体系。
-
We also find two species can coexist only when taking the medium values in some range of parameter,if it is too large or too small only one population can exist or none of them can .
其它的参数不变,而只变化某一个参数的取值,且这一取值变化符合这一参数划分区间,定态会经历这一区间内的多种状态,且会出现临界点,普通渗流与定向渗流类相互转化,且出现两个临界点,两次相转变。
-
In order to facilely perform testing on C or C++ programs, a prototype tool called CppTest is designed and implemented. It can employ three levels'testing, namely (1) structural testing in method level by analyzing program's constructs, instrumenting probes, redirecting I/O stream, etc.,(2) state-based class level testing through modeling state transition behaviors using an extended finite state machine from the class specifications, and (3) system level black-box testing with some traditional strategies such as equivalence partitioning and boundary-value analysis.
以目前普遍使用的C/C++程序作为测试对象,实现了一个能进行方法级、类级和系统级三个级别测试的原型系统CppTest:基于程序CFG图分析、探针插装和I/O重定向等技术,实现方法级结构性测试;按照需求规约运用EFSM对类的状态转换行为进行建模,并依此自动生成测试用例集,实现基于状态的类测试;在系统级别上,运用等价类划分、边界值分析等常规策略进行黑盒测试。
-
Based on analysis to solidification process, it was proposed a new kind of hot cracking theory which was called theory about solidification contraction and its compensation.
本文针对空心叶片类铸件薄壁和在定向凝固过程中横向收缩受阻的特点,设计了定向凝固合金热裂倾向性薄板工字型精铸试样,并提出了。。。
-
For a type of special barflies,said to be simplified,it is shown that two simplified barflies of different sizes are not basic equivalent and that any nonorientable map is basic equivalent to one of the simplified barflies.
一个不可定向地图,如果只有一个顶点和一个面,则称它为一个魔。下面将会看到,这类地图虽然简单,却能反映不可定向地图的全面情况。
-
From developing purposes and curricula system to standards of talents and contents of talents and contents of courses, this paper disuses several primary conditions constructing curricula direction and position on IT majors in higher vocational education.
从培养目标、人才规格和课程体系、课程内容的角度,论述了构建高职IT类专业课程体系&定向&、&定位&的几个前提条件,进而提出了在知识、能力、素质的三维空间构建IT类专业课程体系的整体构想,以及在构建课程体系中应注意的几个问题。
- 推荐网络例句
-
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。
-
When I was in school, the rabbi explained everythingin the Bible two different ways.
当我上学的时候,老师解释《圣经》用两种不同的方法。