中文摘要：

在太阳的放射物理学，为类型 III 爆炸的许多理论在过去的 60 年期间被建议了。几乎所有这些理论基于血浆假设，它假设放射主要是的(i) 经由非线性的过程由兰米尔波浪产生了，(ii ) 放射在来源区域近有频率到本地血浆频率或它的第二泛音。我们强烈感到现在是没有求助，倡导一条其他的途径到血浆假设的时间。这简短讨论解释为什么。

英文摘要：

In solar radiophysics, many theories for type Ⅲ bursts have been proposed during the past 60 years. Almost all these theories are based on the plasma hypothesis, which assumes that （i） the radiation is mainly generated by Langmuir waves via nonlinear pro- cesses and （ii） the radiation has frequencies close to the local plasma frequency and/or its second harmonic in the source region. We feel strongly that it is time to advocate an alternative approach without recourse to the plasma hypothesis. This brief discus- sion explains why.