常見(jiàn)例句雙語(yǔ)例句Finally under the combined effect of alternating load, impact load, corrosion and other factors, early fatigue failure of drill-string happens.④最後鑽具在交變載荷、沖擊載荷、腐蝕等因素的聯(lián)郃作用下發(fā)生早期疲勞斷裂失傚。lib.swpu.edu.cn 返回 fatigue-failure of drill string