The material quantity variance or material usage variance is the difference between the actual quantity of material used and the standard quantity that allowed for production multiplied by the standard price. 材料数量差异又叫材料用量差异,是材料实际数量和标准数量的差额与标准价格的乘积。
According to relevant statistical data, the material cost of every project has more than 60% of the total. The quantity and quality of construction equipments owned by construction enterprises is an important standard to evaluate their producing abilities. 根据相关数据统计,建筑工程消耗的材料价值约占工程总造价的60%以上,建筑企业拥有的建筑机械、设备的数量和质量是评价建筑企业资质水平和生产能力的重要指标。
The medicine is natural source material or synthesize chemistries hich is used for the disease treatment and prevention or regulate machine physiology function combine, have the quantity standard and was granted by government department. 药物是用于治疗、预防疾病或调节机体生理功能并具有质量标准、经政府有关部门批准的天然来源物质或化学合成品。