专业加工木结构产品的金属连接件,齿板.We specialize in metal connecting piece and dental plate for timberwork.本文通过分析双腔颚式破碎机结构特点,推导了齿板固定点的轨迹方程.The paper analyze structure peculiarity of the double - cavity jaw crusher.介绍了领式破碎机弧形齿板的外形结构 、 制造...
在所有的实验室里测量质量的工具是砝码和天平.Scales and balances are the tools of mass measurementin all laboratories.需要一套经过校准的砝码.A set of calibrated weights will be needed.对于小模型,可用装满铅丸的容器作为砝码.For small models we can use as weights containers ...