With the frequent characteristics only, we can Judge the flying quality of a DFC aircraft easiely.利用频域特性, 可以方便地评定DFC飞机飞行品质等级.This paper introduces the control method of the DFC - motor system with PLC.介绍了用PLC实现数字变频器 - 电动...
At first, the thermodynamic calculation of Solid Ducted Rocket is researched.在此基础上,首先对固体冲压发动机热力计算展开了研究分析.Sound cover allowsa ducted cooling air outlet , from side only or from both front and back.隔音罩引导冷却空气从一侧或两侧及背面排出.So,...
The globus toolkit is used to control and trustee the entire system.平台使用globus工具,采用了统一控制和完全托管的思想.Objective To study the correlation between globus sensation and chronic antral gastritis.目的本研究旨在探讨癔球症与慢性胃窦炎的相关性以及诊治方法和疗效观察....