ladder dog chain

Ln×K2 is called ladder.

图Ln×K2称为梯子。

Pn×K2 is called ladder.

图Pn×K2称为梯子。

Mechanical computation of stairwell with GRP composite material in coal mine shaft;

煤矿立井玻璃钢复合材料梯子间力学计算

This paper presents an intelligent and rapid design system for stairs and plats of container crane(IRDS-SPCC) based on the combination of the theory of knowledge based engineering(KBE) with the design of stairs and plats of container crane.

应用面向对象的程序设计语言Visual C++对三维参数化图形设计软件SolidWorks进行二次开发,将知识工程的思想与集装箱起重机梯子平台的设计相结合,开发出基于知识工程的集装箱起重机梯子平台智能快速设计系统(Intelligent and Rapid Design System for Stairs and Plats of Container Crane,IRDS-SPCC)。

"Ladder laws"is a very famous law, mentioned by an American scholar——Lawrence Peter, which is based on one hundred of phenomenon that many employees are not competent in new promote positions : In the hierarchical organizations, as long as there are enough time and promotion opportunities, each employees may be promoted to the positions he is not competent for.

"梯子定律"是美国学者劳伦斯。