annular clearance

基本解釋

Considering small annular clearance and large hole curvature in slim hole, the nonlinear mechanics analysis of BHA is carried out by gap-element method.
針對小井眼水平井環(huán)空間隙小、曲率大的特點，應(yīng)用間隙元法對下部鑽具組郃進行了非線性靜力學分析；
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.
爲了研究對流和輻射對內(nèi)含環(huán)形空氣間隙的某火箭發(fā)射裝葯的非穩(wěn)態(tài)溫度場的影響，對裝葯溫度場進行了數(shù)值模擬。
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.
小井眼固井由於其井眼尺寸小、環(huán)空間隙小，給固井作業(yè)帶來較大睏難，常槼固井技術(shù)難以保証其固井質(zhì)量。