The valve is driven directly by a large strake multilayer piezoelectric stack, its displacement actuates the power cascade spool after amplification by a lever mechanism.
该阀采用大行程的压电叠堆作为驱动元件，经杠杆放大后的位移直接驱动功率级滑阀。
2
Objective: to assess emodin antagonism to cerebral ischemia injury, and to discuss the mechanism of emodin inhibiting the inflammatory cascade reaction from the levels and expressions of cytokines.
目的：评价大黄素抗脑缺血损伤作用，并从细胞因子水平及表达方面探讨其抑制炎性级联反应机制。
3
It is important to study the mechanism between the cascade blade profile parameters and the thrust reverser effectiveness.