A small sand drum used for bamboo processing can be designed to be a simple structure, in which elastic clamping rings are not only assembling bases of clamping roll, but also the parts that produce clamping force. 竹材加工用的小型砂辊可设计成简易的结构形式,其中弹性夹紧环既是夹紧轴的安装支座,又是产生夹紧力的零件。
Completed the trace sand body at present, the whole development effectiveness are well, which to offer the direction in well network regulations and the roll increase reserves. 目前追踪的砂体,整体开发效果良好,较以前得到了十分良好的效果,为井网调整和滚动增储提供了方向。