顾名思义，就是一个该酸分子电离后能产生三个H^+（氢离子）如H3PO4（磷酸）等
n. triacid
misc. tribasic acid ; triprotic acid
结果表明，随三元酸含量减少，纤维强度逐步增加，但三元酸含量减少到一定程度，强度基本保持一定值；
Results show that with the decrease of trimacinic acid the fiber strength increases, but as the acid content lowers to a certain level, the strength remains a constant value;
支撑熔盐膜由一种新型陶瓷材料(偏铝酸锂)和锂、钠、钾的三元最低共熔点混合物制成。
Supported molten salt membrane is made from a new kind of ceramic material (lithium meta-aluminate) and ternary eutectic mixture of lithium, sodium and potassium carbonates.
根据丙烯酸异丁酯、异丁醇、水三元物系的相平衡关系，可以采用常规精馏与共沸精馏二种分离方法。
A ternary system of butyl acrylate-butyl alcohol-water may be separated through rectification or azeotropic distillation according to the equilibrium relationship.
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