r12

Study and application of the sf_6 / r12 gas mixture

SF6/R12混合气体绝缘的研究与应用

The simulated computation and experimental study of heat pump by using refrigerant mixture r12 / r142

混合工质R12/R142热泵循环的模拟计算及实验研究

Two-center expansion formulas of ( 1 / r12 ) in elliptic coordinates

1/r（12）的双中心椭圆座标展开公式

We will have to add support for the new Erlang R12 release , which introduced a handful of cool improvements .

我们将不得不支持新的ErlangR12版本，它引入了一些很酷的改进。

Half ( 16 / 32 ) of the scarlet fever strains had the same RAPD pattern ( R12 ) .

半数（16／32）猩红热来源GAS株为R12型。

Prospects the application of hydrocarbon refrigerants to automobile air-conditioners and considers that they may be a drop-in substitute for R12 .

同时，展望了碳氢制冷剂在汽车空调中的应用前景，认为其有可能成为R12的直接充注替代物。

In order to understand flash boiling injection , the drop velocity distribution in steady spray of freon R12 as test liquid was investigated by using LDA technique .

为探索闪急沸腾喷雾的形成机理，以氟里昂R12为试验掖体，采用激光多普勒测速仪（LDA）测量了稳定流动条件下粒子的速度分布。

Older readers will remember vehicles fitted with the " old gas " called R12 , a compound of Chlorine , Fluorine and Carbon ( CFC ) .

年长的读者们会记得有些车辆注入的“元老级气态制冷剂”为R12，一种氯氟碳（英文简称CFC）的混合物。

In our country , ultra-cold box usually use R12 / R22 / R502 in high-temperature and R13 in low-temperature .

在我国超低温箱采用的制冷剂一般为，高温级是R12/R22/R502，低温级是R13。

This paper presents the analysis of suction gas superheat loss in the shell of hermetic refrigerating compressors and its quantitative calculation when the R12 is used as a refrigerant .

本文对全封闭压缩机的吸入汽体在机壳内的加热进行了分析，并以R12为工质进行了定量计算。

In this work , for safety , a refrigerant ( freon R12 ) was used as test liquid , which has very similar physical properties to those of DME and LPG .

为安全起见，用制冷剂R12作试验液体，它与LPG和DME有相似的物理特性。

The mean ion mobilities in SF6 gas 、 SF6 / air and SF6 / R12 gas mix-tures are obtained from the current-voltage measurements under discharge condi-tions .

利用直流电晕放电的电流&电压关系，测量了SF6气体、SF6/空气和SF6/R12混合气体中离子的平均迁移率。

And therefore a small amount of electronegative additive of SF6 or R12 ( CC12F2 ) in air , which results in formation of very stable negative ions , leads to a significant in-crease in impulse breakdown voltages in a highly nonuniform field gap .

在空气中添加少量电负性气体SF6或R12（CCI，F，），冲击击穿电压得到大幅度提高，这是由于形成了高稳定性的负离子的缘故。