毛管

葡萄滴灌系统中毛管及微管滴头的设计

Design of lateral and micro-pipe emitters in drip irrigation system for grapes

并列出了按经验系数法计算毛管的步骤，并示以算例。

Besides , Steps of Lateral calculation are formulated with this method .

低压PE滴灌毛管水头损失试验

Experimental analysis of head losses in PE laterals under low pressure trickle irrigation

Ti对18－8型不锈钢毛管裂纹的影响

Effect by titanium on cracking of 1 8 - 8 type stainless steel shell

结合NMR和毛管压力资料计算储层渗透率的方法

A computation method for reservoir permeability by combining NMR log and capillary pressure data

统计分析表明，在土壤理化性质中，土壤毛管孔隙率、非毛管孔隙率、有效磷含量、全磷含量、含水率和PH起着主要作用。

Among the physical and chemical soil properties , capillary porosity , non-capillary porosity , available P , total P , water content and PH value played an important roles .

目前主要的泡沫分流酸化模型有：基于分流理论的临界毛管压力模型，气泡总量关系模型和RobertMack模型。

The model currently includes critical capillary pressure model based on fractional-flow theory , bubble population correlation and Robert-Mack model .

在土壤的各种理化性质中，容重和总孔隙度是影响饱和导水率的主导因素，其它如毛管孔度，pH为次要因素。

The bulk density and total porosity were the main impact factors to the saturate hydraulic conductivity , whereas the other factors such as the capillary porosity and pH took the second place .

5～15cm土层土壤容重变化不大，非毛管孔隙度增加了1.1%，说明免耕养鸭有利于改善土壤的物理性状。

It showed no-tillage duck-raising was beneficial to improving soil physical characteristics ;

但以前用饱和水T2分布构造的毛管压力曲线的方法与实际毛管压力曲线匹配性差。

The available methods using T 2 distribution to evaluate capillary pressure curves result in poor correlation with the real capillary pressure curves .

在此基础上，定义了降比r和压比G，根据r的大小，讨论了均匀坡毛管压力水头的分布；

This paper also defines the reducing ratio to be r and the pressure ratio to be G , and according to the value of discusses the distribution of lateral pressure head on the uniform slope .

事实上，薄膜束缚水部分的存在引起T2分布反映的孔隙空间与毛管压力曲线反映的孔隙空间有差异。

In fact , core space reflected by the existence of membrane bound-water T 2 distribution is different from that reflected by capillary pressure curves .

本文提出一种改进方法，在消除薄膜束缚水对T2分布的贡献后，用自由水T2分布构造毛管压力曲线。

The thesis put out an improved method which uses free-water T 2 distribution to construct capillary pressure curves after eliminating membrane bound-water 's contribution to T 2 distribution .

根据J油田大量岩芯分析资料，应用油藏流体分布理论和毛管压力计算方法，研究该油田低电阻率油气层的形成原因认为：地层水矿化度高（多数>20万ppm）；

Based on large amount of core analysis data and by using the fluid distribition theory and capillary pressure method , the formation of low resistivity layers of this oil field is studied .

土壤有机质、全N、有效N、有效K、pH值与细根现存量相关显著（P<0.05），细根对物理性状的影响主要体现在毛管孔隙度和总孔隙度上；

Soil organic matter , total nitrogen , available nitrogen , available potassium and pH had significant correlations with fine-root biomass ( P < 0.05 ) . The effects of fine-roots on soil physical properties mainly reflected on soil capillary porosity and total porosity .

三个林型土壤田间持水量、毛管持水量和饱和持水量均随土壤深度增加而变小；垂直方向向上BOD5随水深增加递减。

Soil moisture contents decreased with the increase of soil depth . and decreased successively with the increase of water depth in vertical direction .

Φ130mm三辊穿孔机穿孔的毛管质量

Shell quality of φ 130mm three-high piercer

免耕土壤容重和硬度增大，总孔隙度、非毛管孔隙度和有效P、K降低，放线菌和真菌数量减少，而土壤细菌数量增加，酶活性增强。

Soil analysis showed that in no-tillage fields , soil bulk density and hardness were increased , soil porosity and available P and K were decreased , the amount of actinomyces and fungi was reduced , while that of soil bacteria was increased , and the enzyme activity was promoted .

当供水负压为1cm，盘径为14.4cm（小盘径），导水率和宏观毛管上升高度的空间连续性没有表现出来。

When tension was 1 cm and disc diameter was 14.4 cm , the spatial structure of hydraulic conductivity was not displayed .

分析了Φ100mm穿孔机穿制不锈钢厚壁毛管时的受力状态及在三种工艺条件下的轧制负荷。

The co-authors analyze the loading state and the rolling loads under three different process conditions of Φ 100mm piercer in piercing stainless steel heavy shells .

烟台钢管厂φ100mm穿轧机穿轧φ136mm毛管获得成功

Successful piercing and rolling of φ 136mm shells by a φ 100mm piercing mill in Yantai steel pipe factory

针对电缆地层测试（WFT）在短时间内抽吸地层流体无法解除侵入带的泥浆污染，泥浆侵入带形成的毛管力对测试压力数据有很大的影响。

As the testing time is relatively short , WFT pumping Volume seldom breaks down mud contamination , capillary force in the invaded zone impacts testing pressure data .

本文论证了要使不同的毛管压力曲线转换成同一条J（Sw）曲线的条件，即这些毛管压力曲线必须在单对数坐标系（lgPc&Sw）上相互平行或重合。

It is proved in this paper that the condition of merging different capillary pressure curves into the sigle J ( S_w ) curve is that these capillary pressure curves must be parallel or overlapped in the single-logarithmic coordinates ( lgP_c-S_w ) .

常绿阔叶林的非毛管持水量通常高于100mm，而寒温带/温带落叶阔叶林和常绿针叶林通常低于100mm。

Non_ capillary capacity of evergreen broadleaf forests was more than 100 mm , but was less than 100 mm in the cold_temperate / temperate deciduous broadleaf and evergreen coniferous forests .

随着浓度增大，SDBS溶液使亲油的毛管表面润湿接触角缓慢减小，而CTAB溶液使润湿接触角大幅减小，在与最大吸附量对应的浓度下润湿接触角有最低值；

In solution of increasing concentration SDBS reduces the wetting contact angle on lipophilic capillary surfaces moderately and CTAB & significantely with a minimum contact angle observed at the concentration corresponding to the maximum adsorption on oily sand .

统计研究了中国油田河流相与三角洲相的典型油水相对渗透率曲线、典型毛管压力曲线、典型PVT关系，以及多种储层参数的平均值。

Typical oil-water relative permeability curve , typical capillary pressure curve , typical PVT correlation of fluvial and delta facies in oil field of China and average value of several reservoir parameter are studied statistically in this paper .

试验测定了粘土和砂土二种土壤在不同容重下水气、PCE气和水NAPL的毛管压力与饱和度的关系曲线。

A laboratory measurement of capillary pressure-saturation curve of three systems , water-air 、 PCE-air and water-NAPL , for heavy loam and sandy loam at different bulk density is introduced in this paper .

由于储层岩石孔隙结构不符合毛管束模型，使得Laplace公式仅在表现接触角趋近于0°或180°时可用于根据毛管压力曲线计算储层岩石的孔径分布。

Since the pore structure of porous media is not observed capillary tube model . Laplace equation can be used to calculate the pore size distribution of the reservoir rock based on the capillary pressure curve only when the apparent contact angle approaches to 0 ° or 180 ° .

结果表明，CTAB可使油湿灰岩储层的表面性质发生明显变化，基质毛管的自吸及滞水排油能力增强，周期注水开发效果明显改善。

The results showed that the surface property of oil-wet limestone reservoir changed towards that of water-wet reservoir greatly , and the capabilities of capillary imbibition , water storage and oil displacement were enhanced by using CTAB . The efficiency of cyclic water-flooding could be improved considerably .

土壤容重降低0.3445g／cm3和0.2050g／cm3，土壤变得更为疏松；毛管持水量增加12.59%和12.02%，土壤保水蓄水能力增强。

The soil has become more porous and the soil unit weight has had a drop of 0.3445g/cm3 and 0.2050g/cm3 and its capillary water capacity has increased by 12.59 % and 12.02 % , the water preservation and storage capacity of the soil has been considerably strengthened .