查询词典 conductivity

Relative hydraulic conductivity is first evaluated cell boundaries by using full upstream weighting, the arithmetric mean, or the geometic mean of values from adjacent cells. Saturated hydraulic conductivites are evaluated at cell boundaries by using distance—weighted harmonic mean.

首次采用分散平均方法估算水力传导率，即运用上风权重法来估算单元边界的相对水力传导率，运用距离权重调和平均法来估算单元边界的饱和水力传导率。

Thermal conductivity of copper is almost twice as much aluminum to heat evenly to the external heat sink.

铜的热传导系数几乎是铝的两倍，能均匀的将热量传送到散热片的外围。

The results show that the compound conductive fiber has typical structure of sheath-core consists of black greened polyaniline electric conductive deposition as the skin and the white polypropylene matrix fiber as the core, which makes the compound fiber preferable physical mechanical property. The intensity and the elongation ratio of the electric conductive fiber are decreased but the thermal stability is enhanced after modified. The compound fiber has the good acid resistance but poor base resistance. The thermal stability of the compound fiber prepared by 4-methyl-benzene sulfonic acid is better than that prepared by hydrochloride acid. Moreover, the compound fiber can be re-doped by other organic or inorganic acid after freed from the adsorbed acid. Furthermore, the electric conductivity of the compound fiber decreases with the temperature increasing but hardly changed with the humidity. The adsorptive ability and therefore the content of the polyaniline, the constant of electric conduction, and the durability of the compound fiber can be enhanced by thinning the diameter, section heteromorphosis, section heteromorphosis and plasma treatment of the surface or blending with COPET of the fiber.

结果表明：复合纤维是聚丙烯与聚苯胺的共混体系，具有典型的皮芯型结构，皮层为墨绿色的聚苯胺沉积层，形成连续的导电通道，芯层为白色的聚丙烯基质纤维，提供物理机械性能；导电改性后纤维的强度、强力和伸长率均有下降，但热稳定性得到提高；复合纤维的耐酸性比耐碱性好，以对甲苯磺酸做掺杂酸比盐酸掺杂聚苯胺热稳定性好，脱掺杂后的复合纤维，可用其它无机酸或有机酸进行再掺杂；复合导电纤维的电导率随温度升高降低幅度较大，但几乎不受湿度影响；基质纤维细旦化、截面异形化、表面等离子体处理或共混COPET等改性处理均能提高纤维的吸附性，进而提高复合纤维表面聚苯胺含量、电导率和耐久性。

It will not lose strength or conductivity under conditions of high humidity nor will it break down.

它不会失去力量或导电性的条件下高湿度也不会崩溃。

Extruded polystyrene insulation board is a polystyrene resin as raw material, through the special process of continuous extrusion molding of rigid foam board, its in-house as an independent closed bubble structure, is a high-compression, non-absorbent, moisture-proof, airtight, light-weight, corrosion resistance, long life, excellent performance and low thermal conductivity of the environment-friendly insulation materials.

挤塑聚苯乙烯保温板是以聚苯乙烯树脂为原料、经由特殊工艺连续挤出发泡成型的硬质板材，其内部为独立的密闭式气泡结构，是一种具有高抗压、不吸水、防潮、不透气、轻质、耐腐蚀、使用寿命长、导热系数低等优异性能的环保型保温材料。

Objective To explore the identification method of hogwash oil through measuring electrical conductivity.

目的 探索通过电导率的测定来鉴别潲水油的检测方法。

Electrical conductivity is a practicable simple method to identify hogwash oil.

电导率的测定可用于潲水油的鉴别检测。

Hogwash oil and qualified edible oil were compared to find the characteristics of electrical conductivity.

将潲水油与合格食用油进行对照研究，寻找潲水油在电导率测定中的特性。

In past logging modeling, conductivity is generally assumed homogeneous in each rectangle element or invariable in z direction or piecewise homogeneous in z direction.

以往电测井有限单元法的数值计算中往往假定电导率分块均匀，或者在纵向分段均匀，或者在纵向上不变。

Provided is a liquid crystal sealant composition in which an aqueous solution obtained by admixing the epoxy resin composition with purified water has an ionic conductivity of 1 mS/m or less; the B stage-reduced product has a viscosity of 50 to 10000 Pa.s at 80 to 100 DEG C; the cured matter of the above composition has a linear expansion coefficient of 10x10-5 mm/mm/ DEG C or less and a glass transition temperature Tg of 100 DEG C or higher; and the above cured matter has a moisture permeability of 200 g/m2.24 hours or less at 80 DEG C and which can meet a liquid crystal display element produced by a single layer press hot bonding system and exhibits high adhesion reliability and makes it possible to produce a homogeneous liquid crystal display element having a high quality.

本发明提供一种液晶密封剂组合物，其中：通过将环氧树脂组合物与相同质量的净化水混合得到的水溶液具有离子电导率为1mS/m或更小；在80～100℃下半溶阶段折合产物的粘度为50～10000Pas；上述组合物的固化物具有线膨胀系数为10×10－5mm/mm/℃或更小，热形变温度Tg为100℃或更高；且上述固化物在80℃时具有透湿率为200g/m224小时或更小，这能够满足通过单层热压粘结体系生产的液晶显示元件，并具有高的粘结可靠性，使得有可能生产出具有高质量的均匀液晶显示元件。

The changes of the HAF after liver injury may be related to the volume of blood loss, the intraabdominal pressure and the pneumoperitoneum duration.

肝撞击伤伴失血后肝动脉血流量的变化与失血量、气腹压力以及气腹持续时间等有密切联系。

Reneging on our commitments to the world's poor cannot be an austerity measure, she said.

放弃我们给世界上的穷国的承诺不能成为一种紧缩措施。