essentialityn.本性；真髓；本质essentialadj.本质的；必要的；重要的n.要素；必需品essential fatty acid requirement必需脂肪酸需要量essential factors for prediction预测要素Essential User Rekeying Variable基本用户重新键入变量essential pragmatic factor group语用要素群essential oil of mosla chinensis香薷挥发油essentially-undecidable theory本质不可判定理论essential oil and lymph drainage香熏法／淋巴引流术essential mixed cryoglobulinemia特发性混合型冷沉淀球蛋白血症, 特发性混合性冷球蛋白血症Essential pulmonary hypertension原发性肺动脉高压Essential Logistic Supply Center主要后勤补给中心