The arithmetic to control all kinds of linear dominated sections and resoluble conditions are expatiated in this paper.

阐述了各类线性控制器的相应控制算法，及其可辨识条件。

It was also demonstrated that resoluble sugar and protein in diseased leaves had no regular changes during different infection stages, but showed different effect on plant metabolism.

不同级别病叶中可溶性糖和蛋白质的含量无明显规律性变化，在发病的不同时期对黄瓜体内物质代谢的影响不同。