穿越

TBM A tunnel boring machine is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata .

全断面隧道钻掘机是一种被用来挖掘隧道的机器，他穿越不同的土层及石层用一个圆形的部分穿越。

Then the stationary joint probability density, the conditional reliability function, the mean first-passage time of the optimally controlled system are obtained from solving the reduced FPK equation, the backward Kolmogorov equation and the Pontryagin equation, respectively of fully averaged systems.

求解与之相应的Fokker-Planck-Kolmogorov方程得最优控制系统的联合概率密度，进而求得最优控制系统的平均幅值；求解与之相应的后向Kolmogorov方程得最优控制系统的条件可靠性函数，进而求得首次穿越时间的条件概率密度；求解与之相应的Pontryagin方程得最优控制系统的平均首次穿越时间。

First, the backward Kolmogorov equation for the conditional reliability function and the Pontryagin equation for mean first-passage time and then- associated boundary and initial conditions are derived based on the stochastic averaging methods for quasi non-integrable, quasi integrable and quasi partially integ...

首先利用拟不可积、拟可积非共振及拟部分可积非共振Hamilton系统的随机平均法分别给出了研究该系统首次穿越问题的提法，包括计算条件可靠性函数的后向Kolmogorov方程及计算平均首次穿越时间的Pontryagin方程及其边值条件。

Then the FPK equation governing the joint probability density of amplitude and phase, the backward Kolmogorov equation governing the conditional reliability function, and the Pontryagin equation governing the mean first passage time are established, respectively.

随机微分方程。在此基础上，建立联合概率密度满足的Fokker-Planck-Kolmogorov方程、条件可靠性函数满足的后向Kolmogorov方程以及平均首次穿越时间满足的Pontryagin方程，分别求解这些方程得到联合概率密度、条件可靠性函数以及平均首次穿越时间。

In addition, TrakTip has a low lesion-entry profile, which further improves crossability.

除此之外，TrakTip需要穿越的病变区域较小，这也增强了穿越功能。

Passed through the innumerable continuously raining daytimes, passed through the innumerable dark night.

穿越了无数阴雨连绵的白昼，穿越了无数黑沉沉的夜晚。

In the project of Dongfang-Yangpu-Haikou Long Distance Transportation Pipeline Crossing through Changhua River, the construction technique of launch way with slide boards is utilized, that is, the pulley block fixed on opposite bank tows the pipeline directly. The pulley block of a 32t low speed windlass successfully towed the integral pipeline section through the river.

在海南东方－洋浦－海口输气管道工程的昌化江穿越施工中，采用了发送道滑板施工技术：滑轮组过江直接牵引管道，32t慢速卷扬机牵引滑轮组将管道整体牵引过江，牵引穿越一次成功。

Therefore, the water-surface crossing with mobile flexible pipelines is often adopted and it is a first choice to cross an innavigable river.

软管水面穿越河流具有铺设迅速，检修方便，容易掌握和使用等优点，尤其是对于不通航河流，是软质机动管线临时穿越河流的首选方式。

In this paper,on the basis of profound study of hydrogeologic condition in Liuqiao fault and the data of Rock mechanics test,the author analyzed the possibility of water inrush through fault when a laneway go through Liuqiao fault by means of numerical simulation method.

本文依据巷道穿越刘桥断层时的水文地质条件和构造条件，结合已有的岩石物理力学试验资料，采用数值模拟法对延伸巷道穿越刘桥断层时，突水的危险性进行了初步分析，对矿井的安全生产具有一定的指导意义。

The crossing of the Nefud desert if considered impossible, even by the local Arabs, but Lawrence persuades them that, in this way, they can take the Turkish port at Aqaba from the rear.

对当地的阿拉伯人来说要穿越內夫得沙漠都是不可能的，劳伦斯却说服他们，如果他们穿越沙漠，他们将会从后方突袭取得土耳其的亚喀巴港口。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。