The importance and conception of claim, the classification of noncontrollable factors in engineering construction and the claims caused by those factors are introduced.

介绍了程施赔的重要性、概念以及程施非可控因素的种及其导致的赔。

Is to analyze the power paremeters of variable speed AC drive.Is to accomplish the power paremeters of variable and noncontrollable speed AC drive.

以及设计两个新型的可变结构控，在同步磁阻马达的位置与速度控上，提升同步磁阻马达驱动系统之性能。