英语语法分析

VMA

abbr. 有效存储地址（Valid Memory Address）；虚拟存储地址（Virtual Memory Address）；（美）阀门厂商协会（Valve Manufacturers Association）

例句

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 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％。

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。