| 释义 |
〔saccharometer〕A hydrometer that determines the amount of sugar in a solution from density measurements.糖量计:根据密度大小来确定浓液中的糖的含量的一种液体比重计〔mascon〕A mare on the moon having rock of greater density than that of the surrounding area, thus exerting a slightly higher gravitational force.质量密集:月球上的阴暗部,其内部岩石比周围地区的岩石的密度大,因此产生略大些的引力〔dunite〕A dense igneous rock that consists mainly of olivine and is a source of magnesium.纯橄榄岩:一种密度大的大成岩,主要由橄榄石组成,是镁的一种来源 |