钠闪石

A green to black mineral of the amphibole group; consists of silicates of calcium and sodium and magnesium and iron.

一种闪石族矿物，通常为绿色至黑色之间，由含钙、钠、镁、铁的硅酸盐组成。

Using thin section X-ray diffraction techniques, his paper identified arfvedsonite in volcanic rocks from Songliao Basin, and thus confirmed that the volcanic rocks are composed of pantellerite.

利用岩石薄片X衍射技术，在松辽盆地深层富碱酸性火山岩中识别出特征的碱性暗色矿物－钠铁闪石，从而确定其为碱流岩。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。