But for benzene, when treated with SDM-A there was a turning point in its adsorption isotherm, which corresponding to the dividing point between monomolecular and multimolecular layer adsorption.

在SDM-A理苯的吸附时，出现折线形的吸附等温线，折线的转折点正好是单分层吸附与多分层吸附的分界点。

The density of each isochore was based on the pressure-density relationship at 410 K,which was obtained from the Burnett analysis.

首先对超临界410K等温线的数据进行法分析,建立压力和密度关系。以此为基础,获得各条定容线的密度。