When the bulk specific gravity of coarse aggregate and the apparent specific gravity of fine aggregate are used to compute VMA value, the VMA value is greater than the VMA value by American method.
The specified minimum VMA can assure not only the enough bitumen content, but also the stability of mixture.
规范规定的最小VMA不仅要能保证足够的沥青用量,还要能保证沥青混合料的稳定性。
The positive sensivity of urinary VMA was 73%, and blood catecholamine was 93%.
尿香草基苦杏仁酸和血儿茶酚胺定性诊断阳性率为73% ,93%。
The results show that the VMA value computed by percent air voids in bituminous mixture plus percent total bitumen volume in bituminous mixtures is bigger than the VMA value by America method.
Both urine VMA and HVA levels were higher in the workers exposed to aluminum, and urine VMA level in the exposed was significantly higher than that in controls.
铝作业工人尿中的高香草酸和香草扁桃酸水平均较高,且香草扁桃酸水平显着高于对照工人;
The signal path of the VMA is changed through the position of the switch and the tube as well as the capsule, get biased in a different way.
该VMA的信号途径是通过开关的位置和管以及囊变,得到偏向于以不同的方式。
Method Measuring the content of VMA and F1VA in the urine by GC.
方法采用气相色谱法定量尿中vma、HVA含量。
It was considered that the urinary VMA was probably one of the early objective detecting indices for microwave radiation.
作者认为尿vMA可能是微波辐射早期影响的客观指标之一。
The positive sensitivity of blood catecholamine was 68% , and urinary VMA was 84%.
血儿茶酚胺和尿香草基苦杏仁酸增高者分别为68%,84%。
Result the content of VMA and FfVA between the fluoride group and control group is the significant difference.
结果氟骨癥患者组与病区对照组间VMA、HVA含量有非常显着差异。
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