The ionic space charge in the micro-voids of water tree will produce a period vibration by AC voltage stimulating. Under superposition voltage, the vibration can impel the ion penetrating into the tiny crackle between micro-voids of water tree and lead to a change in the conductivity of water tree. With this the ultra-low frequency spatial current signal of the water tree would be emerged in detecting circuit. The polarization and depolarization of the polar end-group of the PE formed in water tree developing will also contribute to this special signal.

本文分析認(rèn)為深夜在线，水樹枝中的離子型空間電荷在幾種電壓共同作用下會發(fā)生周期性振動，這種振動會促使水樹枝中的導(dǎo)電離子在較低的疊加電壓激勵下進(jìn)入連接水樹枝微孔的微裂紋乐播三级黄三区视频免费，微裂紋導(dǎo)通不僅導(dǎo)致水樹枝的電導(dǎo)發(fā)生變化日韩手机福利写真在线观看，而且在檢測回路中會有水樹枝老化超低頻特征信號電流產(chǎn)生。

In light of the thermal conductivity equation,we have studied refractive indexchange resulted from thermal effect induced by linear and nonlinear absorption inZ-scan measurement with pulse laser.

從熱傳導(dǎo)方程出發(fā)国家aaaa级黄片，對在脈沖激光作用下由于樣品線性吸收和非線性吸收產(chǎn)生熱效應(yīng)引起的折射變化進(jìn)行了研究污污色色。

The linear expansion coefficient,heat conductivity and specific heat Of elementwill change along with temperature change.

硅化硅電熱元件的線膨脹系數(shù)、熱傳導(dǎo)率和比熱等隨著溫度的變化而變化欧美性爱欧美精品二区，相關(guān)數(shù)據(jù)如下

Typically, the cast of the long-necked type valve cover has good heat dissipation and high temperature adaptation, be used for high temperature applications; stainless steel valve cover assembly of the long neck has a lower thermal conductivity and good low-temperature adaptation sex, were used in cryogenic applications.

通常色影音，鑄造的長頸型閥蓋具有較好的散熱性和較高的高溫適應(yīng)性，被用于高溫應(yīng)用場合国产美腿美女被操；不銹鋼裝配的長頸型閥蓋具有較低的熱傳導(dǎo)性和較好的低溫適應(yīng)性国产在线.c，被用于低溫應(yīng)用場合。

The material has a single crystal globular structure with grain-size in the range 1-2μm, whose electron conductivity is about 2.4x10-2 S/cm.

合成材料粒徑1-2μm爱福利视频广场一区二区，顆粒分布比較均勻亚洲色呦呦在线，電子電導(dǎo)率為2.4x10-2 S/cm。

A method for determination of Malachite green in fishes was established by high performance capillary electrophoresis using self-constructed conductivity detection system.

建立了魚類中孔雀石綠殘留量的高效毛細(xì)管電泳－電導(dǎo)法av高速在线网站。

The variations of longitudinal stress, transverse stress and yield strength of oxygen-free high conductivity copper with time under planar shock loading are obtained using the manganin stress gauges and compared with the predicted results by the constructed seven constitutive models.

采用所構(gòu)建的七種本構(gòu)模型對于高導(dǎo)無氧銅的平面沖擊波試驗(yàn)進(jìn)行了數(shù)值模擬并與實(shí)驗(yàn)結(jié)果比較色污网站免费在线观看。

We derivea formula of the optical conductivity for manganites in various phases.

我們推導(dǎo)出能計算各個相的光電導(dǎo)公式。

May send polystyrene to have the nature lightly, moderately-priced, the thermal conductivity to be low, the hygroscopicity is small, electric insulation performance good, sound-insulated, quakeproof, moisture-proof, formation craft simple and so on merits, thus widely serves as profession and so on construction, transportation heat preservation heat insulations, sound-insulated, the earthquake resistance material, to serve as the electric appliance, the measuring appliance, the glass products, the electronic products and so on cushion packing material and the food packing

可發(fā)性聚苯乙烯具有質(zhì)輕免费A片一区二区三区视频、價廉国产在线精品永久网址、導(dǎo)熱率低、吸水性小亚洲又黄的A片、電絕緣性能好又色又污视频网站、隔音、防震免费的黄黄网站、防潮www.欧美视频、成型工藝簡單等優(yōu)點(diǎn)，因而被廣泛地用作建筑黄页网站网址在线观看、交通運(yùn)輸?shù)刃袠I(yè)的保溫絕熱另类日韩高清精品视频在线观看网站、隔音、抗震材料、用作電器黄色网站高清视频、儀表、玻璃制品欧美加勒比、電子產(chǎn)品等的緩沖包裝材料和食品包裝

The results suggest that both polyimide structure and silver structure have significant influence on the surface reflectivity and conductivity of the final metallized film.

結(jié)果表明聚酰亞胺基體和銀鹽的結(jié)構(gòu)對復(fù)合薄膜的表面反射性能和導(dǎo)電性能都具有很大的影響國產黃噴潮在線觀看。