查询词典 migration

The numerical tests show that, DSR equation migration methods such as common azimuth migration have a promising prospect in areas with strong variations of velocity, e.g., subsalt, reef and buried hill, etc.

数值试验表明，共方位角偏移等DSR方程叠前深度偏移方法在盐体或礁体、古潜山等强横向变速地区具有很好的应用前景。

The functional testes of the process migration system indicate that it can support socket migration perfectly.

系统功能测试表明本文的进程迁移系统可以完全支持socket迁移。

This results in the increase of migration rate of T. tubifex and acts as the dominant factor affecting the migration rate.

通过实验室模拟颤蚓的迁移，研究了颤蚓分布密度、底泥性质对颤蚓迁移运动的影响。

The cost and store of the projected migration method is equivalent to those of two-step 3-D migration method.

它的工作量和所需的内存与两步法三维偏移相当。

Xwfd pre-stack migration based on wave equation has strong adaptability to the medium which has strong variable transverse velocity and it can be used for migration with dual-complexity.

波动方程的频率空间域有限差分深度偏移对介质速度横向变化有较强的适应性，适宜于复杂构造的偏移成像。

In CRS gather method, we derived the quantitative relationship between optimal three parameter and migration velocity field, and then put forward ray-tracing method to get migration velocity field using optimal three parameter in CRS stack. The applications proved its effectiveness and adaptability.

在CRS道集偏移速度建模中，推导了优化三参数与偏移速度场之间的定量关系，提出了利用CRS叠加中的优化三参数求取偏移速度场的射线追踪法，模型试算表明了方法的有效性和适应性。

Via comprehensive computations, the possibilities of vinylidene and allene intermediates were excluded, and the reaction mechanism was found to contain the following three steps:(1) gold-catalyzed cyclization to give the cyclic intermediate,(2) the cyclic intermediate undergoing a 1,3-H migration to give a more stable intermediate, with the assistance of water-cluster,(3) finially, the 1,2-H or 1,2-silyl migration occuring for generation of the observed product.

通过对各种可能的反应路径的进行计算和比较，排除了亚甲基卡宾和连二烯中间体的可能性，并确定该异构化反应机理包含以下三个步骤：（1）炔丙基吡啶反应在金催化条件下发生分子内的成环得到环状中间体；（2）环状中间体在水分子簇的协助下优先发生1，3-氢迁移反应，异构化得到更为稳定的中间体；（3）最后再进行1，2-氢迁移或是1，2-硅烷基团迁移即得到实验中所观察到的环异构化产物。

Under the different pH conditions, the migration and transformation behavior of each form of phosphorus released from the lake sediments into water body was studied by means of simulation. The results show that under alkalic condition or acidic condition, the temporal and spatial distribution of phosphorus in the water body changes with its releasing mechanism, and its migration and transformation behaviors are various. The change of pH value has no obvious effect on such transformation, but the total phosphorus in the water body has substantial effect on the concentration change of various forms of phosphorus.

通过室内模拟湖泊沉积物在不同pH条件下，研究释放到水体中各种磷形态的迁移转化行为，结果表明：碱性条件和酸性条件下，水体磷的时空变化由于其释放机制的不同，其迁移转化行为各不相同，同时，pH值的变化对水体中各种磷的相互转化没有明显的作用，各种磷形态的浓度变化，在很大程度上取决于水体中总磷的浓度。

From the 0 degree to 130 degree at per 10 degree migration changes of anteromedial and posterolateral bundle of the ACL were measured in comparison with the migration at 90 degree in the condition of no force and vertical force of 50 N.

分别在不受力和受纵向力50N的状态下在膝关节屈曲0度到130度之间每隔10度测量前内侧束和后外侧束相对于90度时的位移变化；并通过固定金属标记物分别推算两束的松驰和紧张时的角度。

In this paper migration theory and techniques related to the high-energy TEGN gun propellant are presented, and some methods determining the migration of RDX are analyzed and compared. As a result, chemical and thermal analyses are employed associatively to test the content of RDX in different position of TEGN gun propellant stored different period. The antimigration capability of TEGN gun propellant making use of two different granularity of RDX is also been studied.

本文以高能太根发射药及其相关技术为研究对象，分析研究了迁移理论以及目前国内外测定RDX迁移性能的方法，对这些方法的优缺点进行了比较，并采用化学分析法、热失重法、差式扫描量热法相结合的方法对各种不同储存时期高能太根发射药不同部位中RDX含量进行了测定，研究了使用两种不同粒度RDX制备的太根发射药的抗迁移性能。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷