demarcate GRE

demarcate categories.

区类别

a demarcated area of the Earth.

地球一个被划了界线区域

plots of land demarcated by barbed wire.

用带刺铁丝网划块土地。

art was being demarcated from the more objective science.

艺术正在被从更加客观科学中区出来。

SO3磺化生产经常会出现这样问题．即磺化器结焦处理及标定。

The production of SO3 sulfonation is in common present a problem, that is coking disposal and demarcate of the sulfonator.

We do the thermoluminescence research systemly for deep volcanic rocks section, this will possibly demarcate eruptible gyration and evolvment character.

4、对巨厚火山岩剖面进行系统热释光研究,可能标定其喷发旋回和演化。