As the sun setting , the peacock fly on the tree one after another , and hide in the thick leaf inside dwell for rest , until sure of surroundings have no an excrescent circumstance , then insert the head in to the wing to fallen asleep 夕阳西下,孔雀相继飞到树上,躲藏在密枝浓叶中栖息,直到确信周围没有异常情况时,才把头插入肋间入睡
2.
Considering the eigen - equations belong to redundance equations because the measured eigen - pairs are less than the orders of model , in order to solving the ones and get the modification matrices of mass and stiffness , the excrescent variables are given randomly 为了求解超越方程以确定质量与刚度修正矩阵，提出随机给定超越方程中的多余变量值，采用遗传算法来寻优。
3.
Qlfm720 、 900 、 1000 、 1200 quickly laminator ( with cutter ) inhabit small area , handle convenient , speed fast , equip automatic temperature - control and speed - adjust , get automatic papers - transport function , and set up automatic one - off cut larger 、 excrescent material , it also can instead of cutting machine 1200型快速复膜机（带分切） ，该机占地面积小，操作方便、速度快、配有自动控温调速，装有自动输送纸张功能，还设有自动一次性分切多卷、多余材料，可代分切机。
4.
Coordinate system of the manipulator is built , and kinematic equation is obtained . the reverse kinematics of the robot is analyzed using algebra and geometry , and the conditions to eliminate excrescent results are presented . and the working space of the mechanical arm is gained , singularity of the manipulator is analyzed 对机械臂进行了运动学分析,建立机械臂坐标系,建立正运动学方程,并采用代数法和几何法求解机器人逆运动学问题,并给出剔除多解的条件,求解出机器人手臂的工作空间和雅可比矩阵,并对机械臂的奇异性进行分析。
