亦称临界参量。它是临界温度、临界压强和临界体积的统称。不同物质的常数值不同。 V=3b，T=8a/27Rb,P=a/27b^2
介绍纯物质特性参数包括临界常数、偏心因子和势能常数的计算方法。
Calculation method of characteristic parameters for pure substance, such as critical constant, centric factor, and constants of potential energy are put forward.
拟合得到了亨利常数与温度关联式的系数，同时提出了以临界体积为参数的甲烷在烃类溶剂中的亨利系数的估算方法。
The temperature coefficients of Henry constant were correlated. At the same time, a method was advanced to estimate methane Henry constants in hydrocarbons using critical volume.
驱动堆控制回路具有小的时间常数和超调量，调整时间短，控制特性亦优于临界堆。
The control loop of reactor driven by accelerator has a little time constant, a little overshoot, and short regulating time, its control characteristics also are better than critical reactor's.
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