Finally, we need some means of igniting the mixture in the top of the cylinder.最后我们需用一些装置点燃汽缸顶部的混合气体.The ortho cone helicoid was used interrsect intercept by the ortho cone helicoid and the cylinder.正圆锥螺旋面是正圆柱螺旋面被同轴正圆锥面截...
The court has no power to order a psychiatric examination of the child’s parents.法院无权要求对孩子的父母进行精神病检查。We finally insisted that he seek psychiatric help.我们最后坚持要求他寻求精神科医师的帮助。Objective To study the situation and tendency of ...