2) concave or convex
虚实性
3) Probe into the Duality of Practice
实践的二重性探究
4) the duality of environmental reality
环境现实的二重性
6) real and imaginary frequency response
实、虚频特性
1.
Fir- stly, his calculus was efficaciously improved: the common formula of real and imaginary frequency response was advanced that is convenient for manual computation and more convenient for compute programming.
从两个方面对如何更好地绘制开环系统曲线进行了研究:(1)对它的计算方式进行有效的改进,推出实、虚频特性计算通式,它方便于手算,更方便于计算机编程运算;(2)针对快速确定曲线有关形状给出了2个判据,即起始渐近线判据和实、虚频交点判据。
补充资料:二重性
指事物本身所固有的互相矛盾的两种属性,即一种事物同时具有两种互相对立的性质。如商品,一方面它有使用价值,另一方面它有价值。也说两重性。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条