查询词典 welted seam

Research on coal bedding structure is the theory foundation and precondition of coal seam gas exploitation.

煤体层理结构的研究是煤层气开发开采的理论基础和前提条件。

Therefore drainage of large quantity of high concentrated coal seam gas is of great significance.

煤层气是威胁贵州煤矿安全的重要因素之一，同时煤层气又是清洁能源，大量高浓度的抽放出煤层气具有十分重要的意义。

Using Matlab Neural Network toolbox,the model of coal seam interface interpolation of ANN is established.

利用Matlab的神经网络工具箱建立对煤层界面插值的人工神经网络模型。

One, it was impossible that plant formed the so thick coal seam in the ancient times.

一、 古代植物不可能形成那么厚的煤层。

Factors affected coal seam permeability change and its law is analyzed.

分析了煤层透气性变化的影响因素及变化规律。

The proportion of the complicated coal seam is enhancing gradually with the increase of the coal output in China.

在我国随着原煤产量的不断增加，构造复杂煤层所占比重逐渐增加。

To study mass exchange relation between them is of important significance to exploit low permeability methane in coal seam.

煤层气在煤层中的流动是孔隙中扩散和裂隙中渗流的综合过程，研究二者之间的质交换关系，对开发低透气性煤层的煤层气具有指导意义。

Research on coal bedding structure is the the ory foundation and precondition of coal seam gas exploitation.

煤体层理结构的研究是煤层气开发开采的理论基础和前提条件。

According to needing to make sure coal seam thickness.

根据需要确定煤层厚度。

On a global scale, there are many coalfields suffered from spontaneous combustion of coal seam problems.

在全球范围内，许多煤田都存在煤层自燃问题。

You can do some assertiveness training.

你可以进行一些自信训练。

We were well on the path to making a rear-wheel-drive global platform," says Mays."

我们正致力于建立一个后轮驱动的平台，"Mays这样说道。"