回转式
0
回转式钻机由哪几部分组成？
庞永生 2021-03-28 03:38 开发者_运维知识库回转式钻机指的是依靠钻具的回转运动破碎岩层而成孔。主要有大、小锅锥钻机，正、反循环转盘式钻机，液压动力头式钻机，潜孔振动回转式钻机等。简单的回转式钻机只有[详细]
2023-03-12 17:08 分类：问答Webcombo return error when trying to populate based on another WebCombo
This has gotten me completely frustrated I have a few webcombo boxes that are hierachial: Continent Country[详细]
2022-12-28 14:51 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
加载中,请稍侯......