含气量

研究结果表明：随着外掺石粉含量的增加，碾压混凝土的VC值相应增加，含气量相应降低；

The research results are summarized as follows : The value VC increases and air content decreases with the increase of the mixed stone powder content .

混凝土含气量对其力学性能的影响

Influence of Air Content in Concrete to Its Mechanics Performance

为了对煤层含气量进行定量预测，采用BP神经网络预测方法，建立了煤层含气量预测的BP神经网络模型。

In order to predict coal bed gas content quantitatively , a BP neural networks model was established using a BP neural networks prediction method .

ZL104合金中的含气量在熔炼过程中的变化及其影响

The Variety of Gases Content in the Alloy ZL104 ′ in Melting Process and Its Effect

研究结果表明，掺入PAN纤维增加了混凝土的含气量，提高了混凝土的抗拉极限应变、抗弯韧性和断裂能，因而有利于混凝土低温环境下的强度增长和提高了混凝土的抗冻融耐久性。

Results of the investigation indicated that adding PAN fibers into concrete leads to high air content , improves tensile strain limit , flexural toughness and fracture energy , which are beneficial to strength development and durability improvement of concrete at low temperatures .

MPB材料与引气OPC混凝土之间的粘结强度损失明显比非引气OPC混凝土小，且含气量愈大，粘结强度损失愈小。

The bond strength loss between MPB materials and OPC concrete with the air-entraining agent are obviously lower than OPC concrete without the air entraining agent , and the higher the air content in OPC concrete is , the smaller the loss is .

煤层储气能力是制约含气量大小的主要因素，它随着煤阶的增高和埋深的增加而增高，在埋深小于800m时最明显。

The gas reserve capacity is the essential factor controlling the gas-bearing amount in coal measures , which increases with the growth of coal ranks and burial depths ( the most distinct example is when the burial depth is less than800m ) .

以海拉尔盆地褐煤储层为例，预测了煤层埋深2000m以浅的三相态含气量。本论文为丰富我国煤层气地质理论、开发我国低煤级煤层气资源奠定了基础。

Case in lignite seam of Hailar Basin , we predicted three states gas volume in coal seams above 2000m depth . This thesis enriched coal bed methane geological theory and established foundation of CBM resource exploration in low rank coal .

煤层含气量是煤矿设计和煤层气开发利用中极为重要的参数之一，其值变化范围大（0～20m3／t），影响因素多而复杂。

Coalbed gas content , with a big change range ( 0 ~ 20 m3 / t ) and affected by a lot of complex factor , is a very important parameter in coal mine design and coalbed gas development .

环境气压对混凝土含气量的影响

The effect of air pressure of environment on concrete 's air-containing

这对深部开展含气量预测具有重大意义。

It is of momentous significance to gas content prediction deeply .

影响煤层含气量若干因素初探

Primary discussion on the factors affecting coalbed gas content , ngi

棒束中高含气量空泡份额计算模型适用性的研究

Applicability of Void Fraction Models in Rod Bundles at High Quality

高原季节性冻土地区铁路混凝土含气量施工控制措施

Control measures for railroad concrete air content in upland seasonal frosty area

气测资料在确定地层含气量中的应用

STRATUM Application of Gas Data in Determining Formation Gas Concentration

用声学方法测量气液混相物质中的含气量

Measurement of concentration of entrained air in air liquid mixtures

用机械振荡法测定变压器油含气量

Measurement for Gas Content in Transformer Oil by Using Mechanical Vibration Method

降低高压变压器现场安装时油中含气量的方法

Technique to Reduce Gas in Insulating Oil of HV Transformer on Site

考虑含气量变化的浆体水击基本方程

The basic equations of slurry water hammer considering air capacity

煤层含气量预测方法

A method for prediction of gas content in coal seams

含气量对混凝土性能影响的试验研究

Experimental Research on Properties of Concrete with Different Air Contents

煤层含气量的主控因素及定量预测

Main controlling factors analysis and prediction of coalbed gas content

含气量对引气混凝土抗钢筋锈蚀性能的影响

The Influence of Gas Content on Bleed Concrete Resistant Steel Corrosion Performance

煤层甲烷含气量预测的研究现状

Present Research of Estimating Methane Storage in Coal bed

影响碾压混凝土含气量的试验研究

Tests on Air Content Improvement of Roller Compacted Concrete

用声透射损失测气一水混相介质中的含气量

Concentration of entrained air in air-water mixture as measured by sound transmission loss

煤层煤质和含气量的测井评价方法及其应用

The logging evaluation method for coal quality and methane

含气量对梢涡初生空化的影响

Influence of gas content on tip vortex cavitation inception

铸铁含气量的测定与初步研究

Determination and preliminary research of gases content in metals

焦作矿区山西组二1煤层含气量的控制因素探讨

Discussion on Geological Controlling Factors of Coalbed Methane Content in Jiaozuo Mining Area