【化】 减压蒸馏; 真空蒸馏

在氧化反应的过程中逐步地提高反应温度，反应后期进行减压浓缩，提高了乙醛酸的浓度，缩短了氧化时间，并使尿囊素産率达到40%。

column-reduced standard echelon matrix【计】

reduced mass

reduced triangular idempotent matrix【数】

reduced tee

reduced sample

reduced ordered pair group【数】

first order reduced density matrix

foodstuffs (food) with reduced physiological calorific value