查询词典 conductivity

Casuarina trees have good salinity tolerance , and the electrical conductivity experiment shows that the soil salinity level is low. As a result, it has small influences on growing of Casuarina trees.

由於木麻黄本身属於耐盐树种，经电导度试验结果显示，各试区土壤盐度不高，因此，对於木麻黄生长影响较小。

In recent years, the construction of multi-functional inorganic materials is currently of great interest due to its intriguing electromagnetism, photochemistry, electric conductivity and catalytical, etc.

近几年，由于多功能无机材料具有迷人的电磁、光化学、电导和催化等特性是近来研究热点之一。

Current distributions in a cathodically protected crevice between a simulated coating and segmented mild steel electrodes were measured in diluted NaCl solutions. The effects of the control potential, solution conductivity and crevice thickness on the current distribution were studied.

1前言在联合采用绝缘覆盖层和阴极保护技术防止土壤或水中的钢结构，特别是地下油气管线外壁腐蚀的情况下，阴极保护能否完全防止剥离覆盖层下的缝隙腐蚀成为近些年来阴极保护领域的一个研究热点［'］。

Pseudoverticillata, but there was no significant change in Celtis wightii. There was no significant change in leaf area specific hydraulic conductivity K(subscript l between the two seasons in all the three species, which may caused by the adjustment in hydraulic architecture through partial loss of leaves during the dry season. In the dry season, maximum carbon assimilate rate A(subscript max was significantly lower than that of the wet season in all the three species.

除油朴的枝条边材比导率K(下标 s在旱季和雨季没有显著性差异外，尖叶闭花木和轮叶戟的K在旱季都有显著的降低；而枝条的叶比导率K(下标 l三树种在两个季节间均无显著变化。K在旱季没有显著性降低，可能是常绿树种在旱季通过脱落部分叶片以调整其水力结构来保持较高的单位叶面积的水分供应。

The P-wave velocity v(superscript p and electrical conductivity of chloritic amphibolite are measured at 1.0 GPa, from room temperature to 700℃, using ultrasonic reflection-transmission combined method and impedance spectra method respectively. The sample comes from northern margin of the North China craton.

在1.0 GPa、室温至700℃条件下，分别采用超声波反射－投射法和阻抗谱法，测量了华北克拉通北缘绿泥石化斜长角闪岩的弹性波纵波速度和电导率。

The changes in activities of superoxide dismutase,peroxidase,contents of malonaldehyde and relative conductivity in leaf cell of different tomato varieties were tested after tomato seedling were treated by Toxin from Cladosporium fulvum.

以番茄幼苗为材料，研究了叶霉病菌毒素对番茄叶片内SOD酶、POD酶活性及叶片细胞相对电导率和MDA含量变化的影响。

Because of the low thermal conductivity of coal and the slow rate of distillation, coking is a slow process.

因为煤的导热性低、蒸馏的速度慢，所以炼焦的过程较慢。

The compressional wave velocities and electrical conductivity in some crustal rocks collected from Tibet Plateau are measured under the conditions of high temperature and high pressure.

在高温高压条件下研究了地壳岩石的纵波速度和电导率变化特征。

Result of thermogravity analysis showed that the thermal stability of polyvinylamine chloride lowers with increasing in amination degree. Moreover, properties of dilute aqueous solutions of three types of poly chloride with different amination degree were compared by use of viscosimetric, conductometric, and potentiometric measurements. Results showed that both the electrostatic interaction of neighboring groups on the chain and the reduced viscosity of poly chloride are increased with increasing the degree of amination of poly . The equivalent conductivity is decreased with the increasing the concentration of poly chloride and increased with the increasing the amination degree of poly .

研究了聚乙烯胺盐酸盐的热稳定性和水溶液性质，发现：随着胺化度的提高，聚乙烯胺盐酸盐的对热稳定性逐步降低；聚乙烯胺盐酸盐是一种典型的聚电解质，其水溶液的pH值随平均分子量的变化并不明显，而随着聚乙烯胺胺化度的升高，pH值降低；随着聚乙烯胺盐酸盐的平均聚合度由82.3增加到201.8，它的m值（用于表征聚电解质侧链基团之间相互作用大小的常数）从5.13升高到5.58，而当聚乙烯胺盐酸盐的平均聚合度增加到311.4时，它的m值反而降低到了5.48；随着胺化度由55.65%升高到82.36%，m值由3.65提高到5.50；随着聚乙烯胺盐酸盐的平均聚合度的提高，聚乙烯胺盐酸盐的平均解离常数由7.48降低到7.26，同时随着胺化度的提高，聚乙烯胺盐酸盐的平均解离常数也由8.33降低到7.37；随着聚乙烯胺盐酸盐浓度的提高，溶液的摩尔电导率逐步降低，随着聚乙烯胺胺化度和聚合度的提高，溶液的摩尔电导率有所升高；在pH值为4左右时，聚乙烯胺盐酸盐的比浓粘度分别达到极值，而与聚合度的大小关系不大；聚乙烯胺盐酸盐的特性粘数明显高于其原料聚丙烯酰胺的特性粘数，分子量对特性粘数的影响十分明显，胺化度对特性粘数的影响并不显著。

Raman spectrum, UV-Vis spectra, IR, NIR and XPS spectra were used to characterize the material. The result indicates that there is a conjugative effect between MWNT and bromine, which induces the change of electron distribution on the MWNT surface. It increased the car- rier density and the electrical conductivity of MWNT became higher.

通过拉曼光谱，紫外可见光谱，红外吸收光谱，近红外吸收光谱和X光电子能谱等方法研究，结果表明：溴与多壁碳纳米管之间存在共轭作用，使多壁碳纳米管表面的电子云分布发生了变化，导致空穴载流子的产生，增加了载流子浓度，提高了多壁碳纳米管的导电性能。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。