The said catalyst was a good hydrogenation catalyst for adiponitrile.

A new presulfidation process of hydrotreating catalyst in the hydrogenation is introduced.

介绍了一种加氢催化剂器内预硫化新工艺.

Class B: hydrogeology survey; engineering geology survey; environment geology survey.

乙级: 水文地质调查; 工程地质调查; 环境地质调查.

Contemporary hydrogeology is in its new stage of eco-environmental hydrogeology.

当代水文地质学进入了生态环境水文地质学阶段.

Class A: hydrogeology survey; engineering geology survey; environment geology survey.

6444794甲级: 水文地质调查; 工程地质调查; 环境地质调查.

Class C: hydrogeology servey; engineering geology survey; environment geology survey.

丙级: 水文地质调查; 工程地质调查; 环境地质调查.

A sequential uncertainty domain based genetic algorithm ( SUDGA ) for inverse estimation of hydrogeology parameters is presented.

提出一种新的基于连续不确定区域的遗传算法 求解 水文地质逆问题.

Class A : areal geology survey; hydrogeology survey; engineering geology survey; environment geology survey; solid mineral exploration.

5654719甲级: 区域地质调查; 水文地质调查; 工程地质调查; 环境地质调查; 固体矿产勘查.

Groundwater recharge is an important parameter in hydrogeology.

地下水入渗补给量是重要的水文地质参数.

The methods for estimating fractal dimensions of daily flow hydrograph in a river are mainly presented.

探讨了日流量过程的分形特性,重点研究了分维估计方法.

Home state spent in 1913 set up Road, Yutian County chun an Chihli hydrographic province.

1913年废州府置设道, 玉田县地属直隶省津海道.

To investigate the value of thick slab single shot projection in MR hydrography.

目的:探讨单激发厚层投射技术在MR水成像中的应用价值.

Objective To evaluate the clinical application value of magnetic resonance hydrography on low field of MR.

目的评价低场强磁共振水成像的临床应用价值.

The condition of hydrological geology is relatively complexity and the contact of waterpower karst mine area.

它决定着矿床水文地质条件复杂程度和矿山防治水设计难度,是矿山排水和矿床疏干设计的重要依据.

Besides that, the observed areas of East Juyanhai by hydrological method were also collected.

此外, 还收集东居延海的水面面积旬观测数据及调水期间的日观测数据.

The checking accepting standards of Hydrological Data Acquisition System ( HDAS ) construction vary with its work mode.

水文遥测系统工作制式不同,系统的验收标准也不同.

The series of low and high water levels are inevitable variations of normal hydrological sequences.

上游山区来水量多年平均无大的变化,某些时段的偏枯或偏半是正常水主序列的必然变化过程.

But It'should reinforce the point that, on hydrological grounds alone, conserving forest is often essential.

但是有一点需要强调的是仅水域而论, 保护森林是极其重要的.

In this system, the mode of hydrological information transmission is very important.

水情信息的传输方式是该系统的重要部分.

Finally , the causes of runoff variation in Sanchuanhe River Basin were analyzed with hydrological simulation method.

采用水文模拟途径分析了三川河流域径流量的变化原因.

Conclusion is the parametric models do some simplicity and supposition the hydrological phenomenon.

两个模型均通过模型适用性检验,模拟效果均达到实用的要求,是可行而有效的.