在第三节中我们指明,可视物质和不可视物质的密度分布是十分不同的。
It is made clear in the third section that the density distributions of visible matter and invisible matter are quite different from each other.
本文综述了黑鲷对蛋白质、脂类、糖类、维生素、矿物质等营养物质的需求,黑鲷物质能量代谢及营养生理方面的研究成果,并指明了今后研究的方向。
The requirement of black porgy on protein, fat, carbohydrate, vitamin, mineral et al, and material energy metabolism and nutrient physiology were reviewed in the paper.
它可以将核素标记为天然物质、工业、医药、或者特殊的核材料物质,并通过相应的标签警告指明该物质的危险性。
It can label isotopes as naturally occurring, industrial, medical, or special nuclear material; corresponding alarms indicate the severity of the threat.
它可以将核素标记为天然物质、工业、医药、或者特殊的核材料物质,并通过相应的标签警告指明该物质的危险性。
It can label isotopes as naturally occurring, industrial, medical, or special nuclear material; corresponding alarms indicate the severity of the threat.
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