Based upon screw theory and set theory, the structural characteristics of lower-mobility parallel robots was studied via the union of limb constraints and the coupling of loop over-constraint.
应用螺旋理论与集合论原理，按照支链并联、回路耦合的观点，进行少自由度并联机器人构型特征的研究。
2
The budget constraint is going to have a different slope to it and preferences will be different over this horizon between consumption then and consumption now.
预算约束线的斜率会有所不同，人们对即时消费和延期消费的偏好，也会有所不同。
3
Position precedence rule. When resolving the float box position, the optimum vertical constraint takes precedence over the optimum horizontal constraint.