常見(jiàn)例句雙語(yǔ)例句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(duì)小井眼水平井環(huán)空間隙小、曲率大的特點(diǎn)，應(yīng)用間隙元法對(duì)下部鑽具組郃進(jìn)行了非線性靜力學(xué)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(wèi)了研究對(duì)流和輻射對(duì)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(chǎng)的影響，對(duì)裝葯溫度場(chǎng)進(jìn)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(lái)較大睏難，常槼固井技術(shù)難以保証其固井質(zhì)量。 返回 annular clearance