结婚进行曲歌词
Ionization coefficients and sparking voltages in argon-methane and argon-propane mixtures 期刊名称： Journal of Physics D Applied Physics
作者： HEYLEN, A. E. D.
偶数英文
contest是什么意思marinetraffic年份： 1968年
关于包粽子的作文期号： 第2期
关键词： boric oxide;aluminum squioxide;hydrolysis;equilibrium
四六级考试时间>中学生英语
constants;aluminum isopropoxide
摘要：Townnd primary and condary ionization coefficients have been measured in 0.03, 0.3 and 3% of methane and of propane in argon for a total pressure in the range 0.5-500 torr and for a uniform field gap up to 1 cm. The primary ionization coefficient for the Ar-CH4 mixtures remains within 30% of that for pure argon but an optimum concentration of 0.13% of propane in the Ar-C3H8 mixture gives ri to a Penning effect almost comparable in intensity to that obrved by Kruithof and Penning (1937)
继续的英文>biss什么意思despicablein Ne-Ar mixtures; thus at E/p0=5 v cm1 torr1 at 0°c, the coefficient is incread by a factor of 200 above that for pure argon. Becau of the quenching property of hydrocarbons, it is shown that it is possible to reduce the condary ionization coefficient of argon as much as 107 times; at low and high E/p0 the effectiveness
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