annular clearance

基本解释

Considering small annular clearance and large hole curvature in slim hole, the nonlinear mechanics analysis of BHA is carried out by gap-element method.
针对小井眼水平井环空间隙小、曲率大的特点，应用间隙元法对下部钻具组合进行了非线性静力学分析；
In order to study effects of convection and radiation on unstable temperature field of rocket charge with annular clearance in the interior, the charge temperature field was simulated.
为了研究对流和辐射对内含环形空气间隙的某火箭发射装药的非稳态温度场的影响，对装药温度场进行了数值模拟。
Cementing of the slim hole is very difficult due to its small hole size and annular clearance, and the conventional cementing technology cannot meet the requirements of field cementing.
小井眼固井由于其井眼尺寸小、环空间隙小，给固井作业带来较大困难，常规固井技术难以保证其固井质量。