The Instructional System Design (ISD) method has been widely applied in enterprise training fields in developed countries.
教学系统设计方法在发达国家企业培训中早已被广泛应用。
The design idea of main unit techniques in this system, and some applied techniques are described in detail.
对系统中几个主要单元技术设计思想以及应用中一些关键技术作了具体说明。
In the mechanical design of the system, screw pair drive is applied to achieve the up-and-down movement.
在该系统的机械设计，双螺杆驱动器是用于实现向上和向下运动。
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