Effects of ionization environment, including reaction ions type and amounts in APCI source, on ionization mode of anthraquinones were examined by changing the flow rate and mobile phase proportion.
通过改变流动相的流速和比例改变离子源中反应离子的种类和数量，研究离子化环境对蒽醌类化合物电离方式的影响。
For reactive sputtering, the gradient films with varying ratio of chemical component can be prepared by changing gas flow rate continuously.
对于反应溅射，可通过连续改变反应气体流量制得化学成分比连续变化的梯度薄膜。
Through experiments of changing the inlet air flow rate, we can adjust the hot air outlet temperature as high as possible, which helps to reduce the heat loss and improve the collector efficiency.
通过改变集热管进口空气流量来获得尽可能高出口温度的热空气，从而降低热损系数，提高集热效率。
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