井底的 meaning in English

downhole

Bottom hole coverage
对井底的覆盖程度
One value even of the smallest well is ， that when you look into it you see that earth is not continent but insular
便是最小的井也有这一点值得推荐，当你窥望井底的时候，你发现大地并不是连绵的大陆；而是隔绝的孤岛。
The knowledge and analytic methods of different disciplines are combined in the design , one example is to analyze how the self - adaptable gage protector works by analogy with the close - loop automatic control system with disturbance ; another is to use hydromechanics to study the working conditions of the mdb in bottom
在设计中，结合其它学科的知识和分析方法，如利用带有扰动的闭环反馈自动控制原理来分析自适应保径器的工作，用流体力学分析保径器在井底的工作条件等。
By means of the software of pro / e we studied the movement of the bit and obtained some data reports about different parameter bit . in the environment of visual basic the trace program can compute the well - bottom outline . it also can draw the trace and the velocity curve that the teeth scrape the well bottom
分析方法是在pro / e中对试验钻头进行运动模拟，得到不同结构参数和传动比的钻头运动的数据文件，然后进入用visualbasic高级语言编制的异形牙轮单牙轮钻头分析软件中，计算出钻头的井底轮廓曲线，并绘制钻头井底轨迹和牙齿刮切井底的速度曲线。