The test results and the basic configuration of the two stage pulse tube refrigerator are presented. The first stagetemperature was 45K.
文中给出了二级脉管制冷机的基本结构尺寸以及试验结果：一级脉管达到45K；
2
Then it gives the control basis for every stagetemperature in Bayer Process-double-fluid digestion process of flotation bauxite concentrate.
论述了铝土矿浮选精矿拜耳法双流溶出工艺过程各阶段温度的控制依据。
3
Through optimization of culture condition, we construct a two-stagetemperature method. In succedent experiment, this method was authenticated to raise the yield of pigment markedly.